DEPARTMENT OF THE INTERIOR 

UNITED STATES GEOLOGICAL SURVEY

GEORGE OTIS SMITH, DIRECTOR

f . BTJIAETIN 563 t

RESULTS OF SPIRIT LEVELING 

IN MARYLAND

1896 TO 1911, INCLUSIVE

R. B. MARSHALL, CHIEF GEOGRAPHER

Work done in cooperation with the State through the Maryland Geological Survey 

William Bullock Clark, State Geologist

WASHINGTON

GOVERNMENT PRINTING OFFICE 

1914

CONTENTS.

Page.

Introduction. ............................................................... 5

Cooperation.......................................................... 6

Previous publication................... : ...........................".. 5

Personnel............................................................. 5

Classification......................................................... 5

Bench marks......................................................... 6

Datum............................................................... 6

Topographic maps.................................................... 7

Precise.leveling.......................................................... 8

Washington quadrangle (Montgomery County)........................... 8

Primary leveling......................................................... 10

Barclay, Betterton, Cecilton, Chestertown, Choptank (30/), Crapo, Crisfield, Deal Island, Denton, Dover (3(X), Drum Point, Harrington, Hurlock, Nanticoke, Ocean City, Oxford, Pittsville, Princess Anne, Salisbury, Seaford, Snow Hill, St. Michaels, and Tolchester (3(X) quadrangles 

(Caroline, Cecil, Dorchester, Kent, Queen Annes, Somerset, Talbot, 

Wicomicp, and Worcester counties).................................. 10

Belair, Elkton, Havre de Grace, and Parkton quadrangles (Baltimore, 

Cecil, and Harford counties)........................................ 17

Annapolis, Baltimore, Ellicott, Laurel, Relay, and Westminster quadrangles 

(Anne Arundel, Baltimore, Carroll, and Prince Georges counties)...... 20

Washington quadrangle (Montgomery County)........................... 24

Washington quadrangle (Prince Georges County)........................ 25

Indianhead, Nanjemoy, and Stafford quadrangles (Charles and Prince 

Georges counties) .................................................. 26

Ijamsville, Mount Airy, Pvockville, and Seneca quadrangles (Frederick, 

Howard, and Montgomery counties)................................. 29

Antietam and Martinsburg quadrangles (Frederick and Washington 

counties).......................................................... 32

Emmitsburg, Hagerstown, Taneytown, and Williamsport quadrangles 

(Carroll, Frederick, and Washington counties)........................ 35

Accident, Flintstone, Frostburg, Grantsyille, Hancock, Oakland, and 

Pawpaw quadrangles (Allegany, Garrett, and Washington counties).... 42

Appendix A: Elevations adjusted by the Coast and Geodetic Survey from 

precise leveling........................................................ 47

Appendix B: Secondary elevations......................................... 72

Index...................................................... 1............. 75

ILLUSTRATION.

Page. 

PLATE I. Geological Survey bench marks................................... 5

3

U. S. GEOLOGICAL SURVEY

GEOLOGICAL SURVEY BENCH MARKS.

A, Tablet used in cooperating States. The State name is inserted at G.

B and D, Copper temporary bench mark, consisting of a nail and copper washer.

A, C, and E, Tablets for stone or concrete structures.

Ft iron post used where there is no rock.
RESULTS OF SPIEIT LEVELING IN MARYLMD, 1896 TO

1911, INCLUSIVE.

R. B. MARSHALL, Chief Geographer.

INTRODUCTION.

Cooperation. The State of Maryland contributed financially to 

the work from 1896 to 1911, inclusive. The State is now completely 

mapped and bench marks have been established in every county except Calvert and St. Marys.

Previous publication. That part of the results of spirit leveling 

in Maryland previously published in Bulletin 434 (which comprised 

descriptions and elevations of bench marks established in Delaware, 

District of Columbia, Maryland, and Virginia, 1896 to 1909, inclusive, 

based on the 1903 adjustment) has been corrected to agree with the 

1907 adjustment of precise leveling of the Coast and Geodetic Survey 

and is here republished together with results of spirit leveling by the 

United States Geological Survey in Maryland since 1909. The elevations by the 1907 adjustment were not changed by the 1912. adjustment and are not likely to be changed by any future adjustment of 

the level net.

Personnel. The field work from 1896 to 1906, inclusive, was done 

under the direction of H. M. Wilson, geographer, and that from 1907 

to 1911, inclusive, was done under Frank Sutton, geographer. The 

work since January, 1908, was done under the general direction of 

E. B. Marshall, chief geographer. Credit is given to the respective 

levelmen in the headings of the several lists. The office work of computation, adjustment, and preparation of lists was done mainly by 

S. S. Gannett, geographer, under the general direction of E. M. 

Douglas, geographer.

Classification -The elevations are classified as precise or primary, 

according to the methods employed in their determination. The 

former are determined by lines of levels run either in both forward 

and backward directions or by simultaneous double-rodded lines, a 

high-grade instrument being used and special precautions being taken 

in observations and reduction to correct errors and make the line continuously good throughout. The latter or primary levels are deter- 

 mined with the Y level, precautions being taken against only the 

principal errors and the levels being run mostly in circuits of single
6 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

lines. The allowable limit of error observed on the precise work 

already done by the Geological Survey in this State is represented in 

feet by 0.02 -/D and that for the primary work by 0.05 VD, in which 

D is the length of the circuit in miles.

Bench marks. The standard bench marks are of two forms. The 

first form is a circular bronze or aluminum tablet (C and E, PI. I), 

3£ inches in diameter and £ inch thick, having a 3-inch stem, which 

is cemented in a drill hole in solid rock in the wall of some public 

building, a bridge abutment, or other substantial masonry structure. 

The second form (F, PI. I), used where masonry or rock is not available, consists of a hollow wrought-iron post 3^ inches in outer diameter and 4 feet in length, which is set about 3 feet in the ground. 

The bottom is spread out to a width of 10 inches in order to give a 

firm bearing in the .earth, and a bronze or aluminum-bronze cap is 

riveted upon the top of the post. A third style of bench mark, with 

abbreviated lettering (B and Z>, PI. I), is used for unimportant 

points. This consists of a special copper nail 1£ inches in length 

driven through a copper washer £ inch in diameter. The tablets as 

well as the caps on the iron posts are appropriately lettered, and 

cooperation by a State is indicated by the addition of the State name

(#,P1.I).

The numbers stamped on the bench marks described in the following pages represent the elevations to the nearest foot as determined by the levelman^ These numbers are stamped with ^-inch 

steel dies on the tablets or post caps, to the left of the word " Feet." 

The office adjustment of the notes and the reduction to mean sea 

level datum may so change some of the figures that the original 

markings are 1 or 2 feet in error. It is assumed that engineers and 

others who have occasion to use the bench-mark elevations will apply to the Director of the United States Geological Survey, at Washington, D. C., for the adjusted values, and will use the markings as 

identification numbers only.

Datum. All United States Geological Survey elevations are referred to mean sea level, which is. the level that the sea would assume 

if the influence of winds and tides were eliminated. This level is not 

the elevation determined from the mean of the highest and the 

lowest tides, nor is it the half sum of the mean of all the high tides 

and the mean of all the low tides, which is called the half-tide level. 

Mean sea level is the average height of the water, all stages of the 

tide bemg considered. It is determined from observations made by 

means of tidal gages placed at stations where local conditions, such 

as long, narrow bays, rivers, and like features, will not affect the 

height of the water. To obtain even approximately correct results 

these observations must extend over at least qne lunar month, and
INTRODUCTION. . 7

if accuracy is desired they must extend over several years. At ocean 

stations the half-tide level and the mean sea level usually differ 

but little. It is assumed that there is no difference between the mean 

sea levels determined from observations in the Atlantic Ocean, the 

Gulf of Mexico, and the Pacific Ocean.

The connection with tidal stations for bench marks in certain 

areas that lie at some distance from the seacoast is still uncertain, 

and this fact is indicated by the addition of a letter or word to the 

right of the word "Datum" on tablets or posts. For these areas 

corrections for published results will be made from time to time as 

the precise-level lines of the United States Geological Survey or 

other Government organizations are extended.

Topographic maps. Maps of the following quadrangles, wholly or 

partly in Maryland, have been published by the United States 

Geological Survey up to June 1,1914. They may be obtained, except

as noted, for 10 cents each or $3 for 50 on application to the Director 

of the Survey at Washington, D. C.:

Accident (Md.-W. Va.-Pa.). *East Washington (Md.-D. C.).78

Annapolis.1 Elkton (Md.-Del.-Pa,). 

Antietam (Md.-Va.-W. Va.).a Ellicott.8

Baltimore.8 Ernmitsburg (Md.-Pa.).

Barclay (Md.-Del.).* Flintstone (Md.-W. Va.-Pa.).

Belair (Md.-Pa.). *Frederick (Md.-Va.).°

Betterton.5 .Fredericksburg (Va.-Md.).

Bloodsworth Island.8 Frostburg (Md.-W. Va.-Pa.).

Brandywine.7 ' Grantsville (Md.-Pa.).

Cecilton (Md.-Del.).4 Green Run (Md.-Va.)

Chestertown.8 Gunpowder.8

Choptank.1 Hagerstown (Md.-Pa.).

Crapo.8 Hancock (W.Va.-Md.-Pa.).

Crisfleld (Md.-Va.). - Harpers Ferry (Va.-W. Va.-Md.).2

Deal Island. Havrede Grace (Md.-Pa.).

Denton. Hurlock.

Dover (Del.-Md.-N. J.).4 Ij.amsville.8

Drum Point.8 Indian Head.

* Out of print.

1 Annapolis, Oxford, St. Michaels, and Sharps Island sheets, on scale of 1: 62500, have 

been reduced and form Choptank sheet, on scale of 1 : 125000.

2 Antietam sheet shows part of Harpers Ferry quadrangle on larger scale.

3 Baltimore, Ellicott, Laurel, and Relay sheets, on scale of 1:62500, have been reduced and form Patapsco sheet, on scale of 1:125000.

4 Barclay and Cecilton sheets show parts of Dover quadrangle on larger scale.

5 Betterton, Chestertown, Gunpowder, and North Point sheets, on scale of 1: 62500, 

have been reduced and form Tolchester sheet, on scale of 1: 125000.

0 Bloodsworth Island, Crapo, Drum Point, and Point Lookout sheets show St. Marys 

quadrangle on larger scale.

7 Brandywine, the east half of Washington, Owensville, and Prince Frederick sheets, 

on scale of 1: 62500, have been reduced and form Patuxent sheet, on scale of 1: 125000. 

. 8 Washington sheet shows the same area as East Washington and West Washington 

sheets.

8 IJamsville, Mount Airy, Rockville, and Seneca sheets show Frederick quadrangle on 

larger scale.
8 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Laurel.1

Leonardtown.2

Montross (Va.-Md.)-a

Mount Airy.3

Mount Vernon (Va.-Md.-D. C.)-4

Nanjemoy.

Nanticoke.

Nomini (Md.-Va.).2

North Point.6

Oakland (Md.-W. Va.).'

Ocean City (Md.-Del.).

Owensville.7

Oxford.8

Parkton (Md.-Pa.).

Patapsco.1

Patuxent (Md.-D.C.).7

Pawpaw (Md.-W. Va.-Pa.).

Piedmont (W. Va.-Md.).6

Piney Point (Md.-Va.).2

Pittsville(Md.-Del.).

Point Lookout (Md.-Va.).*

Prince Frederick.7

Princess Anne (Md.-Va.).

Relay.1

Rockville (Md.-Va.)."

Romney (W. Va.-Va.-Md.).

Salisbury (Md.-Del.).

St. Marys (Md.-Va.).9

St. Michaels.8

Seneca (Md.-Va.)."

Sharps Island.8

Snow Hill (Md.-Va.).

Taneytown (Md.-Pa.).

Tolchester.8

Washington (Md.-D. C.-Va.), double

sheet.4710 20 cents. 

Westminster (Md.-Pa.). 

*West Washington (Md.-D. C.-Va.).410 

Wicomico (Md.-Va.).2 

Williamsport (Md.-Pa.-W. Va.).

PRECISE LEVELING.

Washington quadrangle.

[Latitude 38° 45'-39°; longitude 76° 45'-77° 15'.] 

MONTGOMERY COUNTY.

The elevations in the following list were determined by precise 

leveling and are based upon the elevation of bench mark U F" at 

Great Falls, Md., determined by precise leveling of the Coast and 

Geodetic Survey.

The work was done in November, 1910, by. D. H. Baldwin.

* Out of print.

1 Baltimore, Ellicott, Laurel, and Relay sheets, on scale of 1: 62500, have been reduced and form Patapsco sheet, on scale of 1: 125000.

2 Leonardtown, Montross, Piney Point, and Wicomico sheets, on scale of 1: 62500, have 

been reduced and form Nomini sheet, on scale of 1: 125000.

3 Ijamsville, Mount Airy, Rockville, and Seneca sheets show Frederick quadrangle on 

larger scale.

* The west half of Washington sheet shows part of Mount Vernon quadrangle on 

larger scale.

B Betterton, Chestertown, Gunpowder, and North Point sheets, on scale of 1: 62500, 

have been reduced and form Tolchester sheet, on scale of 1: 125000.

6 Oakland sheet shows part of .Piedmont quadrangle on larger scale.

7 Brandy wine, the east half of Washington, Owensville, and Prince Frederick sheets, 

on scale of 1: 62500, have been reduced and form Patuxent sheet, on scale of 1:125000.

8 Annapolis, Oxford, St. Michaels, and Sharps Island sheets, on scale of 1: 62500, have 

been reduced and form Choptank sheet, on scale of 1: 125000.

9 Bloodsworth Island, Crapo, Drum Point, and Point Lookout sheets show St. Marys 

quadrangle on larger scale.

10 Washington sheet shows the same area as East Washington'and West Washington 

sheets.
PRECISE LEVELING. 9

From' Great Falls southeast along Chesapeake & Ohio Canal to Lock 8, near 

Cabin John Bridge.

Great Falls, near Lock 20, east side of spillway of dam, on top of

parapet wall, between crane and gage rod; the surface within a Feet.

chiseled angle (U. S. C, E. Intake b. m. 156.445)__________ 157.533 

Great Falls, 155-foot mark on gage________________,___ 156.14 

Great Falls, crest of dam near spillway (U. S. C. E. elevation 150.5)_ 151.75 

Great Falls, east end of dam, on northwest corner of next to top

step of parapet wall; chiseled angle (U. S. C. E. b. m.)______ 155.246 

Great Falls, west wall of Lock 20, 0.2 meter west of edge and 1.65

meters south of north gate; bottom of a square cut £}. (C. & G.

S. .b. m. F)_________________________________ 166.592 

Great Falls, southwest corner of gate house, on projecting foundation

stone, 1.2 feet south of southwest corner of water table; bronze

tablet stamped "Prim. Trav. Sta. No. 1, 171"___________ 171.146 

Great Falls, west entrance to gate house; chiseled angle (U. S. C. E. 

. elevation 171.26)______________________________ 172.353 

Lock 19, on west wall, 2 feet north of south end and about 5 'feet east 

" of west side of south end; chiseled cross painted " 159 "_______ 158. 620 

Lock 18, in top of west wall, at south end; end of broken tie bolt with

"A" cut alongside, painted " 150 "___________________ 149. 672 

Lock 17, in top of west wall, southwest corner of south end; chiseled

square painted " 142 "__________________________ 141. 640 

Gateway between Locks 16 and 17, on west wall; shallow drill hole,

painted " 135 "______________________________ 135.435 

Locks 16 and 17, gateway between, on west wall; bottom of chiseled

square 0. ____ _____________________________ 135. 519

Lock 16, top of west wall, at south end, 2.25 feet north by'6.75 feet

east of southwest corner; chiseled cross painted " 134 "______ 133.509 

Lock 15, on top of west wall, at south end, 2 feet 1 inch north by 3 feet

8 inches east of southwest corner; chiseled cross painted "126 "__ 125.577 

Lock 15, 380 feet south of, west of towpath, on rock; chiseled square

marked " 120 "_______________________________ 120.461 

Lock 15, 0.6 mile south of, 240 feet south of center of bridge over spillway, west of towpath, on ledge; chiseled triangle painted " 121"__ 120. 617 

Lock 15,1 mile south of, west of towpath, at bend in canal, on ledge;

chiseled square painted "119"______________________ 119.339

Milepost 11, west of towpath; marked point on top, painted " 119 "__ f 19.030 

Milepost 11, 0.8 mile south of, west of towpath, on root of water

willow; copper nail, tree is blazed and scribed "U. S. G. S.

b. m. 120"__________________ ____________ 119.914 

Milepost 10, south of towpath; marked point on top, painted " 119 "_ 119. 020 

Milepost 10, 1,813 feet south of, under surface of slab over floodgate. 117. 826 

Lock 14, on north wall, on north stone of east end; bronze tablet

stamped "117" (Prim. Trav. Sta. No. 2)________________ 117.374 

Lock 13, on south wall, 1 foot from southeast corner of east end;

chiseled square painted " 109 "_____________________ 109.254 

Lock 12, on southwest wall, 2 feet northwest of southeast end and 4

feet northeast of southwest end; adjacent surface to chiseled cross,

painted " 102 "_______________________________ 101.574 

Lock 11, on south wall, 2 feet west of east edge, 3 feet north of south

edge; adjacent surface to chiseled cross, painted "93"______ 93.454 

Lock 10, on south wall, near east end; chiseled cross painted " 85 "__ 85.268
10 SPIBIT LEVELING IN MARYLAND, 1896 TO 1911.

Lock 9, on south wall, near east end, 2 feet .west by 3 feet north of Feet.

southeast corner; chiseled cross painted " 77 "___________ 77.460 

Lock 8, on north wall, on north capstone of east end; bronze tablet .

stamped "69" (Prim. Trav. Sta. No. 3)_______________ 69.034

PRIMARY LEVELING.

Barclay, Betterton, Cecilton, Chestertown, Choptank (30'), Crapo, Crisfield, Deal 

Island, Denton, Dover (30'), Drum Point, Harrington, Hurlock, Nanticoke, 

Ocean City, Oxford, Pittsville, Princess Anne, Salisbury, Seaford, Snow Hill, 

St. Michaels, and Tolchester (30') quadrangles.

CAROLINE, CECIL, DORCHESTER, KENT, QUEEN ANNES, SOMERSET, TALBOT, WICOMICO,

AND WORCESTER COUNTIES.

The elevations in the following list are based on heights derived 

by various gages of the Coast and Geodetic Survey and on checked 

levels of the Pennsylvania Kailroad plus 0.64 foot, a mean correction 

derived through United States Geological Survey connections. For 

additional elevations in Dover, Harrington, and Seaford quadrangles see Delaware list (pp. 9, 10) bulletin 434; and for Franklin 

City, Va., in Snow Hill quadrangle, see Virginia list (p. 52) in same 

bulletin.

The leveling was done as follows: Cecilton and Barclay quadrangles, in 1896 by Charles Goldsborough and O. L. Pettibone; Barclay quadrangle additional work, in 1899 by T. D. Leonard and in 

1904 by Ealph Hutchins; Betterton, Chestertown, and St. Michaels 

quadrangles, in 1899 by T. D. Leonard; Hurlock quadrangle, in 1899 

by Leonard, in 1900 by George Bailey, and in 1904 by C. A. Clunet; 

Seaford quadrangle, in 1899 by Leonard and in 1904 by Clunet, in 

1911 by J. H. Lefeaver, and in 1912 by J. M. Whitman; Denton and 

Harrington quadrangles, in 1899 by Leonard and in 1904 by B. J. 

Green; Oxford quadrangle, in 1900 by Bailey and J. W. Hodges, in 

1902 by W. C. Palmer, and in 1904 by Clunet; Crapo quadrangle, in 

1900 Jby Hodges and in 1904 by Clunet; Drum Point quadrangle, in 

1904, by Clunet; Nanticoke quadrangle, in 1900, by Hodges, and in 

1902 by Palmer; Salisbury, Princess Anne, and Pittsville quadrangles, in 1900 by Hodges and C. H. Semper; Crisfield and Deal Island 

quadrangles, in 1900 by Semper; Snow Hill and Ocean quadrangles, 

in 1900 by Hodges.

CECILTON (DOVER 30') QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 75° 45'-76°.]

From Chesapeake City southwest via Cayots Corners to Earleville, thence south 

and west to Locust Grove.

Feet.

Cayots Corners, at road forks; iron post stamped "83"________ 83.612 

Earleville, in stone in front of S. Duhamel's store; bronze tablet 

stamped " 85 "_____ _ ________.___ __ 85.282
PRIMARY LEVELING. 11

Fredericktown, bridge over Sassafras River; in face of northwest Feet.

wing wall; bronze tablet stamped "5"________________ 5.460 

Locust Grove, 40 feet north of crossroads and east side of Beaston's

house; iron post stamped "76"____________________ .77.075

From Locust Grove south to Chesterville.

Blacks station, in front of store, on stone foundation of middle pillar 

of porch; highest point_______.___________________ 70.26

Chesterville, north corner of crossroads, at corner of brick storehouse; 

iron post stamped " 55 "_________________________ 55. 829

From Hillington north along Philadelphia, Baltimore &. Washington R. R. and 

highways to Bohemia Hills.

Millington, northwest corner of Cypress and Sassafras streets, in 

doorsill of store; copper plug stamped "26"_____________ 27.120

Massey, northwest corner of crossroads, in southeast corner of foundation of Walsberger's store; bronze tablet stamped " 65 "_____ 65. 770

Massey, 3.5 miles east of, at Maryland-Delaware State line; top of

boundary stone ____________ __ __ 68.10 " 

Sassafras, dwelling of Mr. Earnest; copper plug in step to back 

porch, stamped "U.S.G.S. b. m. 34"_________________ 34.791

BARCLAY (DOVER 30') QUADRANGLE.

[Latitude 39°-39° 15'; longitude 75° 45'-76°.]

From Chesterville south to Benson Center, thence east to Sudlersville, thence 

north to Millington.

Benton Corners, 1,000 feet west of, in northeast corner of foundation 

stone of farmhouse; bronze tablet stamped " 60 "___________ 60.911

Barclay, 1.5 miles north of, 50 feet west of railroad crossing, southwest corner of road; top of large stone __________ .69. 85

Sudlersville, corner of Church and Main streets, northeast corner of 

'stone foundation; bronze tablet stamped "66"___________ 66.798

From Barclay southwest to Roberts, thence southeast to Goldsboro, thence 

northeast to Mary del.

Roberts, at southeast corner of Scott's store; iron post stamped "78 "_ 78.469 

Ingleside, southwest corner of Beatty's yard; iron post stamped "62"_ 62.410 

Hollingsworth, south corner of crossroads, outside of corner of garden fence; iron post stamped "66"___________i______ 66.954 

Goldsboro, on east corner of railroad station; bronze tablet stamped

"63 " _______________________________________ 63. 548 

Marydel, south end of freight house; bronze tablet stamped " 63 " (reset 2 feet lower).

From Crumptbn southwest to McGinnes.

McGinnes, 2.9 miles southwest of Crumpton, southeast corner of crossroads, 50 feet east of store, in northwest corner of Williams's yard; 

iron post stamped " 72, 1904"_____________________ 72.381

From Sudlersville east 4 miles.

Peters Corners, 3.8 miles east of Sudlersville, northwest corner of 

crossroads, in base of chimney of private house; aluminum tablet 

stamped " 66, 1904 "__ ______ _ 66.108
12 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

BETTEETON (10LCHESTEB 30') QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 76°-76° 15'.]

From Locust Grove west to Stillpond, thence southwest to Fairlee.

Stillpond, at east side of F. H. Harper's store; iron post stamped Feet. 

" 79 Balto "_______________________i ______________ 78. 813

Hanesville, at road west, in front of post office; iron post stamped 

" 62 Balto "_________________________________ 62.167

CHESTERTOWN (TOLCHESTER 30') QUADRANGLE.

[Latitude 39°-39° 15'; longitude 76°-76° 15'.] 

From Fairlee southeast via Chestertown and Starkley Corner to Roberts.

Fairlee, 60 feet east of S. D. Seaverton's boot- and shoe shop, in large

rock; aluminum tablet stamped "78 Balto "_____________ 78. 543 

Chestertown courthouse; aluminum tablet stamped. "22 Balto"__ 21.918 

Starkley Corner, at northeast corner of crossroads; iron post stamped 

" 54 Balto "_________________________________ 54. 794

From Fairlee south to Edesville, thence southeast to Centerville, thence east to

Roberts.

Edesville, just south of entrance to store of W. L. Sutton; iron post 

stamped " 24 Balto "___-________________________. 24.805

Hada way's store, northeast of entrance, just under window; iron 

post stamped " 18 Balto "__________ ___________ 18.738

Centerville, in southeast corner of courthouse yard, across path from 

State survey meridian monument; iron post stamped " 60 Balto "_ 60.70

ST. MICHAELS (CHOPTANK 30') QUADRANGLE.

[Latitude 38° 45'-39°; longitude 76°-76° 15'.] 

From Centerville south to Easton, thence east to Tanyard.

Wye Mills, corner of Anthony's store, at the end of piazza; iron post

stamped " 21 Balto "________t___________________ 22.121

Longwoods, at northeast corner of Callahan's store; iron post 

stamped "50 Balto"_________ ______ 51.249

Easton, at south end of second step of courthouse; aluminum tablet 

stamped "37 Balto"_______________ ________ 37.545

OXFORD (CHOPTANK 30') QUADRANGLE.

[Latitude 38° 30'-38° 45'; longitude 76°-76° 15'.] 

From Easton south to Trappe.

Trappe, corner of Easton Road and West Street, southeast corner of 

store of Clarck & Kirby, in foundation stone; aluminum tablet 

stamped " 55 "_______________________________ 54.746

From Aireys northwest to Cambridge, thence southeast to Bucktown.

Cambridge, in southwest corner of courthouse, about 1 foot above 

ground; bronze tablet stamped "19 Balto"______________ 20.160

From Smithville northeast to Milton, thence southeast to Little Blackwater

River.

Milton (Woolford post office), north of road opposite road fork 

to Gum Swamp, in front yard of Baptist Church; iron post stamped 

" 6 Adj "________________________.____________ 5. 622
PBIMABY LEVELING. 13

DENTON QUADRANGLE, 

[Latitude 38° 45'-39°; longitude 75° 45'-76°.]

From Goldsboro southwest along Pennsylvania R. £. to Queen Anne, thence 

south along highway to Griffin, thence east to Hobbs.

Greensboro, 10 feet north of station, at edge of platform; iron post peet.

stamped "40 Balto"___________________________ 40.817 

Ridgely, in lawn at northeast corner of Pennsylvania R. R. station, 4

feet from platform; iron post stamped " 69 Adj. 1903 "_______ 69.070 

Hillsboro, at northeast corner of H. Williams's dwelling, on north

foundation wall; aluminum tablet stamped "47 Adj. 1903"____ 46.599 

Griffin, at northeast corner of yard to W. H. Robinson's dwelling;

iron post stamped «' 42 Adj. 1903 "___________________ 41. 376 

Denton, in courthouse yard, on top of south meridian post; bronze

tablet __________^_________________________ 37.916 

Denton, on southeast corner of courthouse; aluminum tablet stamped

" 43 Adj. 1903 "_________^______________________ 42. 703

From Hobbs southwest along highway to Tanyard.

Williston, 30 feet east of southeast corner of store; iron post stamped 

" 24 Adj. 1903 "______________________________ 24. 209

From Tanyard east along highway to American Corners, thence north to Hobbs.

Tanyard, 1.5 miles west of, west end of Dover Bridge, at west end of

C. H. Sinclair's house, north of road; iron post stamped " 4 Balto "_ 4. 789 

Newton, 50 feet east of store, at corner of crossroads; iron post

stamped "40 Adj. 1903"___________________________ 39.678

Fowling Creek, in yard to W. H. Collins's dwelling, 50 feet west of

M. E. Church; iron post stamped " 48 Adj. 1903 "__________ 48. 567 

American Corners, at crossroads, in corner of field in front of store;

iron post stamped " 55 Adj. 1903 "___________________ 55.107 

Concord, 10 feet north of store, at southeast corner of yard to C. E.

Todd's dwelling; iron post stamped " 55 Adj. 1903 "________ 55. 723 

Hobbs, in southwest corner of yard to H. C. Hobbs's dwelling, 50 feet

northeast of Hobbs station; iron post stamped " 55 Adj. 1903 "__ 54.914

HAERINGTON QUADRANGLE.

[Latitude 38° 45'-39° ; longitude 75° 30'-75° 45'.]

From Hobbs north along highways via Burrsville and Whiteleysburg to Greensboro.

Burrsville, 500 feet north of forks of road east, west of street in 

front of William Outtens's blacksmith shop; iron post stamped " 58 

Adj. 1903 " ___________________________________ 58. 545

Whiteleysburg, at northeast corner of Anthony's store; iron post 

stamped " 63 Balto "___________________________ 63.175

HURLOCK QUADRANGLE.

[Latitude 38° 30'-38° 45'; longitude 75° 45'-76°.]

From Tanyard southeast to Federalsburg, thence southwest to Williamsburg, 

thence south to Rhodesdale, thence southwest to Linkwood.

Linchester, at west side of J. F. Tegar's store; iron post stamped

" 18 Balto " ________________________________ 18. 783 

Federalsburg, at T. O. Jefferson's store; iron post stamped " 10 Balto "_ 10.621 

Linkwood, in grass plat at intersection of roads at station; iron 

post stamped " 21 Balto "________________________ 22.234
14 SPIRIT LEVELING IN. MARYLAND, 1896 TO 1911.

From Rhodesdale southeast to Brookvlew, thence north to Eldorado, thence east

to Galestown.

Rhodesdale, at northwest corner of post office; iron post stamped Feet.

"40 Adj "__________________L______________ 40. 619 

Brookview, at southeast corner of W. D. Murphy's store, 300 feet

west of Marshyhope Creek; iron post stamped "24 Adj"____ 24.105

SEAFORD aUADRANGLE. 

[Latitude 38° 30'-38° 45'; longitude 75° 30'-75° 45'.]

From State line near Oak.Grove, Del., southwest along highways to Reliance, 

thence southeast to State line.

Oak Grove, 1.1 miles south of, 10 feet east of highway, in root of

cedar tree; nail marked "46"__________________:__ 45.88 

Winwright School, in front of, in root of tree; nail marked "41"__ 40.85 

Winwright School, 0.1 mile south of, at crossroads, in root of oak , 

tree; nail marked " 38 "______________________^_ 38.08

From Galestown north via Oak Grove to Federalsburg.

Reliance, 1 mile south of, on top of Delaware-Maryland State line 

monument; cross mark____'._____________________________ 42.94

Reliance, at northeast corner of crossroads, at southwest corner of 

Mrs. Phillips's house, opposite former post office; iron post 

stamped "45 Adj "_____________________________ 45.064

Oak Grove, 0.25 mile west of, on top of Delaware-Maryland State line 

monument, 10 feet north of railroad; cross mark__________ 47. 75

Oak Grove, in front of station; top of rail________ 46.4

CRAPO QUADRANGLE.

[Latitude 38° 15'-38° 30'; longitude 76°-76° 15'.] 

From Bucktown southeast to Bestpitch,

Bucktown, in brick foundation at southwest corner of former post 

office; iron post stamped "4 Balto"____________________ 5.310

From Bucktown southwest to Golden Hill.

Bucktown, 4.5 miles west of, at southeast corner of road forks, 7 feet 

south of letter-box post of W. T. Elzy; iron post stamped " 7 Adj "_ 6.739

Gum Swamp, north of road, at wood-road fork north, opposite church 

and schoolhouse; iron post stamped "3 Adj "___________ 3.321

Golden Hill, at road fork at Louis Keene's store; iron post stamped 

"3 Adj"__________________________________ 2.812

From Golden Hill southeast to Wingate.

Lakesville, 0.5 mile north of, 150 feet south of Nazareth M. E. Church, 

in northeast corner of schoolhouse foundation; bronze tablet 

stamped "3 Adj"________________ __ __ 2.589

Wingate, at junction of roads 100 yards north of post office, at southeast corner of road, just outside of fence in front of Mr. Wingate's 

house; iron post stamped "3 Adj "_____________j___ 2.828

DRUM POINT QUADRANGLE.

[Latitude 38° 15'-38° 30'; longitude 76° 15'-76° 30'.] 

From Golden Hill northwest to Smithville.

Sinithville, east of road in front of schoolhouse; iron post stamped 

"6 Adj "_ _:___ _ _ 5.886
PRIMARY LEVELING. 15

NANTICOKE QUADRANGLE.

[Latitude 38° 15'-38° 30'; longitude 75° 45'-76°.] 

From Bestpitch east via Drawbridge to Quantico.

Drawbridge, in brick foundation on south side of small store; bronze Feet, 

tablet stamped "3 Balto"_______________________ 4.130

From Rhodesdale south to Vienna, thence southeast via Mardela Springs to

Quantico.

Vienna, in northwest face near north corner of brick house owned in 

1902 by S. G. LeCompte, 60 feet southwest of road, 180 feet northwest of Nanticoke River, in foundation; bronze tablet stamped 

" 14 " ____________________________________ 14.288

Mardela Springs, 15 feet east of post-office building, 30 feet south of 

road, in grounds of J. L. Langdale; iron post stamped " 27 "____ 26.685

From Quantico south-southwest to Whitehaven, thence east to Loretto. 

Whitehaven, southwest side of house owned in 1902 by William 

Dolby, in brick foundation; bronze tablet stamped " 5 "_____ 4.576

SALISBURY QUADRANGLE.

[Latitude 38° 15'-38° 30'; longitude 75° 30'-75° 45'.] 

From Delmar south along New York, Philadelphia & Norfolk R. R. to Loretto.

Delmar, in northwest corner of Delmar National Bank; aluminum 

tablet stamped "Balto 56"_______________________ 57.249

Salisbury, in southwest corner of front face of courthouse; aluminum 

tablet stamped "22 Balto"_______________________ 23.200

Eden, in northwest corner of foundation of post office; aluminum tablet stamped " 29 Balto "________I________________ 29.968

From Eden east to Longridge.

Longridge, at southeast corner of former post office; iron post stamped 

" 50 Balto "_________________________________ 50.' 727

From Quantico east to Salisbury.

Quantico, in corner of fence at Episcopal Church north of Quantico 

Street; iron post stamped "19 Balto"____ 20.227

PRINCESS ANNE QUADRANGLE.

[Latitude 38°-38° 15'; longitude 75° 30'-75 9 45'.]

From Loretto south along New York, Philadelphia & Norfolk R. R. to Kingston.

Princess Anne, in front face of Somerset Savings Bank on Main 

street; bronze tablet stamped "17 Balto"______________ 18.130

Westover, at intersection of New York, Philadelphia & Norfolk R. R. 

and road leading to Cottage 'Grove, opposite M. E. Miles's store; 

iron post stamped " 15 Balto "___ ____ _ ___ 14.156

From Longridge south to Pocomoke City.

Whiteburg, at southeast corner of old store, inside of J. S. P. White's 

yard, in front of house; iron post stamped "30 Balto"______ 29.674

From Westover east via Pocomoke City to Goodwill.

Pocomoke City, in doorsill of Pocomoke City Hotel, corner Front and 

Market streets; aluminum tablet stamped " 8 Balto "__ 7. 523
16 SPIBIT LEVELING IN MARYLAND, 1896 TO 1911.

DEAL ISLAND QUADRANGLE.

[Latitude 38°-38° 15'; longitude 75° 45'-76°.] 

From Kingston southwest to Hopewell.

Marion, at southeast corner of A. Davis's drug store on Main street, 

60 feet east of railroad and 25 feet north of station; iron post Feet, 

stamped "7 Balto"___ ___:_ _ _ ______ 7.417

CRISFIELD QUADRANGLE.

[Latitude 37° 45'-38° ; longitude 75° 45'-76°.] 

At Crisfleld.

Crisfield, J. W. Dishatoon's grocery store, face of doorsill; aluminum 

tablet stamped "5 Balto 1900" (elevation determined from Coast 

and Geodetic Survey tide gage) __ . _______ 4.920

SNOW HILL QUADRANGLE.

[Latitude 38°-38° 15'; longitude 75° 15'-75° 30'.]

From Franklin City northwest to Goodwill, thence northeast to Snow Hill, 

thence northwest via Coldbourne to Longridge.

Franklin City, 1 mile north of, on outskirts of Greenbackville, southeast corner of Virginia-Maryland boundary stone; marked " 7 "__ 6.72

Klej Grange, at intersection of roads from Mattaponi Landing and 

Snow Hill, on property of Drexel heirs, opposite former post office; 

iron post stamped " 30 Balto "______________________ 29.283

Snow Hill, in sill of front entrance porch of courthouse, GET northeast 

side of steps; tablet stamped "21 Balto"___:____________ 20.552

Colbourne, opposite former post office,, in northwest corner of J. E. 

Dickerson's front yard; iron post stamped " 40 Balto "______ 40.046

PITTSVILLE QUADRANGLE.

[Latitude 38° 15'-38° 30'; longitude 75° 15'-75° 30'.] 

From Snow Hill northeast to Berlin.

Newark, at southeast corner of Quenponco station of Philadelphia, 

Wilmingtou & Baltimore R. R.; iron post stamped " 35 Balto "__ 35.151

From Wango north to Melson, thence west to Delmar.

Parsonsburg, at northeast corner of Riggin's0 grocery store, 100 feet 

north of road; iron post stamped " 80 " 79.651

From Melson east via Twilley to Campbell.

Twilley, in yard at northwest corner of C. W. Lynch's store; iron 

post stamped "40 Balto" ________ _:______ 39.978

OCEAN CITY QUADRANGLE.

[Latitude 38° 15'-38° 30'; longitude 75°-75° 15'.] 

From Campbell south to Berlin, thence west to Wango.

Campbell, inside of lot on the northwest intersection of roads, west 

of F. S. Campbell's store; iron post stamped "25 Balto"______ 24.775

Berlin, on southwest corner of front step of Exchange Savings Bank; 

bronze tablet stamped "45 Balto"__ 44.878
PRIMARY LEVELING. 17 

Belair, Elkton, Havre de Grace, and Parkton quadrangles.

BALTIMORE, CECIL, AND HARFORD COUNTIES.

The leveling was done in Elkton quadrangle in 1896 by 0. L. 

Pettibone; in Havre de Grace quadrangle in 1899 by C. M. Smith; 

in Belair quadrangle in 1899 by Smith and George Bailey; in 1900 

by J. W. Hodges; and in 1910 by C. H. Semper; in Parkton quadrangle in 1899 by Smith and Bailey; and in 1900 by Hodges, J. S. B. 

Daingerfield, and Hargraves Wood.

ELKTON QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 75° 45'-76°.] 

From Bohemia Mills north to Elkton.

Chesapeake, entrance to George R. Boss's store, in north end of door- Feet.

sill of hall; bronze tablet stamped " 17 "_______________ 17. 800 

Elkton, on top of step of south entrance to courthouse; copper bolt

marked " U.S.G.S. b. rn. 28 ft."_____,_________________ 28.438 

Elkton, in doorsill of railroad station; copper bolt___________ 30.00

From Elkton north to Appleton, thence west via Fair Hill * to Calvert, thence 

south via Zion and Bayview 1 to Northeast post office, thence southwest to 

Charlestown.

Strayhorn's mills, 2 miles northwest of Appleton, southeast corner of 

stone wall, foundation of wagon shed; bronze tablet stamped 

" 173 ".______________________________________ 173. 813

Fairview, 3 miles east of, in front of Mahon's barn; top of landboundary stone in center of road_ __ 410.40

Calvert, in churchyard; top of land-boundary stone_____ _____ 441.77

Calvert, in northwest'corner of John E. Crother's store; bronze tablet 

stamped "441"______________________________ 441.720

Bayview, southwest corner of crossroads, foundation of W. L. Jones's 

boarding house; bronze tablet stamped " 385 "____________ 385.300

Bayview, 1.5 miles south of, on land-boundary stone west of road; 

highest point____________ ___ ___________i__ 204.45

Leslie, in front of Baltimore & Ohio R. R. station; top of rail____: 143.4

Charlestown station, 50 feet north of, in northwest corner of northwest cornerstone of cattle guards; copper bolt stamped " 41"___ 41. 540

Charlestown, 390 feet south of railroad station, northeast corner of 

box culvert, on coping stone; copper bolt (Philadelphia, Baltimore & Washington R. R. b. m. 50) - _ :- _ 41.20

HAVRE BE GRACE QUADRANGLE. 

[Latitude 39° 30'-39° 45'; longitude 76°-76° 15'.]

From Aberdeen northwest to Carsins, thence north via Darlington to 

Conowingo.

Aberdeen, at east end of box culvert at milepost 65; copper bolt

(Philadelphia, Baltimore & Washington R. R. b. m. 62)______ 67.60

1 Cross lines were run from Bayview via Pleasant Hill to Cowentown and from 

Pleasant Hill to Pair Hill, but on these no standard bench marks were set.

45924° Bull. 563 14 2
18 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Aberdeen, in upper foundation stone of First National Bank of Feet.

Aberdeen, southeast corner; aluminum tablet stamped " 79 Balto "_ 80.107 

Darlington, 3 miles south of, in east foundation stone of Prospect

schoolhouse; bronze tablet stamped "345 Balto"__________ 346.113 

Conowingo, southwest bridge seat of county bridge; copper bolt

(Philadelphia, Baltimore & Washington R, R. b. m. 11)______ 69.11 

Conowingo, in northwest corner of post office, in foundation stone 2

feet from ground; aluminum tablet stamped " 76 Balto "______ 76.944

From Conowingo east to Rising Sun, thence south to Principio.

Porter Bridge, in foundation stone 3 feet above ground, in southwest 

corner of J. W. Richard's mill; aluminum tablet stamped "89 

Balto "___________________________________.. 88.987

Rising Sun, north side of Worthington's store, in foundation stone, 1

foot above ground; aluminum tablet stamped "387 Balto"____ 387.265

From Fort Deposit northeast via Frincipio to Zion.

Port Deposit, 0.9 mile south of, on northeast bridge seat of bridge 

27; copper bolt (Pennsylvania R. R. b. m. 3) ____________ 5.63

Port Deposit, in northwest corner foundation stone of Port Deposit 

post office and town hall building; aluminum tablet stamped "16 

" Balto "___________________________________ . 16.431

Principio, in southwest corner of foundation stone of H. R. Lynch's

store, 2.5 feet from ground; aluminum tablet, stamped " 302 Balto "_ 302. 327

From Frincipio south to Frincipio Furnace, thence southwest to Havre de

Grace.

Principio Furnace, 0.7 mile west of post office, stone monument east

of road at southwest corner of property owned by W. H. Currier;

marked on fence post " 211"__________________^__ 212.00 

Principio station, Philadelphia, Baltimore & Washington R. R., in

doorsill; copper bolt (railroad b. m. 53)__ ___ 67.430 

Havre de Grace, in southwest ^back wall of Susquehanna River

Bridge; copper bolt (Philadelphia, Baltimore & Washington R. R.

b. m. 57)______________________________________________________ 28.92

Havre de Grace, in southwest corner of Philadelphia, Baltimore &

Washington R: R. station, about 8 feet above tracks; aluminum

tablet stamped "35 Balto"____________________ 35.90

BELAIR QUADRANGLE.1

[Latitude 39°-30'-39° 45'; longitude 76° 15'-76° SO'.l 

From Pylesville north along Pennsylvania R. R. to Cardiff.

Pylesville, in northeast corner of Pyles Mill, 4 feet above ground, in

foundation stone; aluminum tablet stamped " 356 "_________ 357.528 

Pylesville, in front of station, top of rail; b. m ____ __ 366. 7 

Whiteford, 150 feet south of station, 30 feet north of road crossing, in 

west guard rail over culvert; top of of north bolt marked " U. S. 

B. M. 504"___________________________________ . 503.76 

Whiteford, in front of station; top of rail _ ' _ __ 500.4 

Cardiff, in front of station; top of rail __ 418.4

1 For elevations in Belair quadrangle in Pennsylvania see Bull. 515.
PRIMARY LEVELING. 19

From Darlington west to Scarboro, thence south to Fountain Green.

Allibone (Sandy Hook), 0.5 mile north of, in southeast corner of 

Mrs. Webster's spring house, 3 feet above ground; aluminum tab- Feet. 

let stamped " 209 Balto "_________________________ 210. 899

Belair, in steps of courthouse; aluminum tablet stamped "394 

Balto." (Elevation by a spur west from Fountain Green)_____ 395. 500

From Bradenbaugh along highway southeast to Federal Hill, thence northeast 

to point near Whiteford, then southeast via Macton to Scarboro.

Federal Hill, in southeast corner of foundation stone of J. F. Devoe's 

house, opposite former post office; aluminum tablet stamped "590 

Balto-"____________________________________ 591. 227

Pylesville, in foundation stone at northeast corner of Pyle's mill, 

about 4 feet above ground; aluminum tablet stamped " 356 Balto "_ 357. 528

Macton, 0.1 mile south of, in foundation stone at northwest corner of 

J. M. McNabb's house, 4 feet above ground; aluminum tablet 

stamped " 249 Balto "-_ _ ______1___.___s.___ 250.907

From Taylor east along highway via High Point to Hickory.

High Point, in foundation stone on north side of High Point schoolhouse; aluminum tablet stamped "536 Balto"___________ 536.714

PARK-TON QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 76° 30'-76° 45'.] 

From Bentley east along highway to Bradenbaugh.

Bentley, 1,300 feet south of, in northwest wing wall of bridge 53;

copper bolt (Pennsylvania R. R. b. m. 33)______________ 501.820 

Bentley, 0.5 mile north of, in northwest corner .of Bentley Methodist

Church; bronze tablet stamped " 607 Balto" (reported out of place

December 11, 1907)__________________'_________ 607.729 

Trump, in north foundation of M. S. Van Trump's store, at edge of

cellar; bronze tablet stamped " 716 Balto "_______ - _____ 716. 043 

Shane, northwest corner of schoolhouse lot; stone marked " 709 "__ 709.00 

Bradenbaugh, in stone foundation of former post office, just to right

of cellar entrance; bronze tablet stamped " Balto 604 " _ 604.879

From Sparks east along highway to Taylor.

Sparks (Philopolis), 0.1 mile, east of station, in southwest corner of 

Union Chapel, 1 foot above ground; bronze tablet stamped " Balto 

268 " __________________ -_______________ ____ 268. 214

Taylor, in southwest corner of S. Phelps's blacksmith shop, about 2 

feet above ground; bronze tablet stamped " 583 Balto "_______ 583. 654

From Monkton west to Mount Carmel and return.

Monkton, 0.5 mile north of, in center of east end of railroad box culvert; Pennsylvania R. R. b. m. 26___________________ 317.53

Mount Carmel, in foundation stone of porch at northeast corner of v Miller's store and post office; bronze tablet stamped " 674 Balto "__ 673.812

From Sparks north to Bentley.1

Whitehall, in northwest corner of post office, 2 feet above ground; 

bronze tablet stamped "348 Balto"________________ _ 347.979

1 Based on Pennsylvania R. R. elevation plus 0.39 foot.
20 SPIRIT LEVELING IN MARYLAND, 1896 TO 191X. 

Annapolis, Baltimore, Ellicott, Laurel, Relay, and Westminister quadrangles.

ANNE ABUNDEL, BALTIMORE, CABBOLL, AND PBINCE GEOBGES COUNTIES.

The elevations in the following list are based on various bench 

marks of the Baltimore & Ohio and the Pennsylvania railroads in 

this vicinity.

The leveling was done in Annapolis, Baltimore, Ellicott, and 

Westminster quadrangles in 1902 by W. C. Palmer and W. G. Coates; 

in Laurel and Eelay quadrangles in 1904 and 1905 by J. W. Hodges 

and Ealph Hutchins; and in Laurel quadrangle in 1906 by G. S. 

Buckley. .

BALTIMORE QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 76° 30'-76° 45'.]

At Catonsville.

Oatonsville, State Insane Asylum, east face.of southeast wing; bronze Feettablet stamped "396 Balto"_______________________ 395.800

At Pikesville.

Pikesville, main building of Soldiers' Home, just east of main entrance, in southeast corner of foundation wall; bronze tablet 

stamped "516 Balto"__ ____________________ 515.918

From Sherwood east along highways via Towson to a point 4.6 miles east, 

thence via Lavender Hill (Parkville) to Lauraville.

Sherwood, 100 feet south of station, in west end of east center of arch

culvert; copper bolt (Pennsylvania R. R. b. m.)___________ 284.15 

Towson, on southeast cornerstone of courthouse porch; bronze tablet

stamped "465 Balto"__________________________ 465.221 

Parkville, Kelchensten's store and post office, northeast corner of

foundation wall; bronze tablet stamped "343 Balto"________ 343.278 

Lauraville, near northeast corner of city boundary, J. C. Mann's

wagon shop, on south end of doorsill; chiseled square 188.83

From Timonium east along highways to Bosley, thence southwest to Towson.

Timonium, 0.5 mile south of, 800 feet north of rnilepost 11, in west 

end of culvert; copper bolt (Pennsylvania R. R, b. m. 14)____ 357.09

Bosley, on southeast corner of Valley Hotel; bronze tablet stamped 

" 223 Balto."_________________________________ 222.825

At Mount Washington.

Mount Washington, bridge 5, over Western Run, at northeast side, on 

bridge seat; bronze tablet stamped " 198 Baltimore 1900 "_____ 198. 744

From point 0.4 mile north of Reistertown east along highways via Shawan to

Cockeysville.

Shawan, F. G. Wheeler's store and residence, on southeast corner of 

foundation wall; bronze tablet stamped "439 Balto" 438.948

Cockeysville, 150 feet southeast of signal station, on northeast corner 

of culvert; copper bolt (Pennsylvania R. R. b. m. 17) . 278.68
PRIMARY LEVELING. 21

ELLICOTT QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 76° 45'-77°.]

From Ellicott City along Baltimore & Ohio R. R. and highways via Hollofleld 

and Rockdale to Pikesville.

Ellicott City, southwest corner of courthouse (south face); aluminum Feet.

tablet stamped " 233 Balto "______________________ 233.242 

Oella, at W. J. Dickey & Son's woolen mills, west of tracks, south

abutment of Baltimore & Ohio R. R. bridge over Patapsco River;

chisel mark_____^_________________________ 149. 88 

Oella, 1.6 miles northwest of, on southeast corner of west wing

wall of Union Dam; copper bolt, stamped " 187 "__________ 187.609 

Hollofleld, 1.1 miles northwest of, on Quaker Hill, public school No. 2,

on southwest corner of stone doorsill; chiseled shelf________ 456.30

From Rockdale west along highways to Woodstock, thence north to Roisterstown.

Woodstock College, west of main entrance, over small window, on 

center stone; aluminum tablet stamped " 415 Balto "______1 414. 987

Reisterstown, northwest corner stone of Russel's store; aluminum 

tablet stamped "735 Balto"______________________ 735.258

From Woodstock southwest along highways to West Friendship, thence north 

via Sykesville to Gamber, thence east to point 3.8 miles south of Reisterstown.

West Friendship, just west of post office, on milestone 19 north of 

Frederick pike; bronze tablet stamped " 476 Balto "________ 476.023

Sykesville, in second step of Sykesville Bank; bronze tablet stamped 

" 383 Balto "__________________________________ 382. 795

Gamber, on southeast corner of Mount Pleasant M. E. Church; bronze 

tablet stamped "606 Balto"_______________________ 605.568

WESTMINSTER QUADRANGLE. 

[Latitude 39° 30'-39° 45'; longitude 76° 45'-77°.]

From Reisterstown north along highways via Woodenshurg and Fowblesbnrg 

to Hampstead, thence east to Mount Carmel.

Woodensburg, northeast corner of Methodist Church; top of corner 

stone, marked "A. D. 1888"______________________ 703.16

Fowblesburg station, Argile's store and post office, in east foundation 

wall, opposite center of building; bronze tablet stamped " 703 

Balto " ______________________________________ 702. 771

Hampstead, residence owned by C. W. Murray, in southwest corner 

of foundation wall; bronze tablet stamped " 913 Balto "______ 913.271

From Hampstead along highways to Melrose, thence east to Rockdale, thence 

south to Mount Carmel.

Manchester, 0.5 mile northwest of, just over center of stone culvert at 

first stream to right; square cut on stone__________________ 857.37

Rockdale, on northwest corner of paper mill; bronze tablet stamped 

" 510 Balto "__________________._______________ 508. 504

From Woodensburg southwest along highways to Finksburg, thence northwest 

to Westminster.

Westminster, on fifth step of main entrance to courthouse; bronze 

tablet stamped " 774 Balto "_______________ _____ 774.337
22 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

ANNAPOLIS QUADRANGLE.

[Latitude 38° 45'-39°; longitude 76° 15'-76° 30'.] 

At Annapolis.1

Annapolis, at Naval Academy, 8 feet southwest of observatory build- Feet.

ing; top of stone pier (C. & G. S. b. m. "Obs")_________;_ 23.012 

Annapolis, corner of State House; aluminum tablet stamped "58

Balto " ___________________________________ 57.546

RELAY QUADRANGLE.

[Latitude 39°-39° 15'; longitude 76° 30'- 76° 45'.] 

At Winans.

Winans, 780 feet south of Pennsylvania R. R. bench mark No. 101, 

east side of Baltimore & Ohio R. R. bridge______________ 36.766

From Relay east along highway to Fumphrey, thence along Maryland Electric 

Ry. to Elvaton, thence southwest along highway to Bowie.

Pumphrey, in center of north foundation wall of station and store 

building; aluminum tablet-stamped "51 Adj. 1903"________ 51.153

Glenburnie, 1.5 miles northeast of highway bridge over Furnace 

Branch, on top of northwest retaining wall; aluminum tablet 

stamped " 8 Adj. 1903 "__________________________ 7.617

Glenburnie, on northwest abutment of Furnace Branch bridge; cut

(Md. Geol. Survey b. m. 9)__________'_____________ 7.511

Elvaton, in corner of dwelling 50 feet west of store; copper nail (Md. 

Geol. Survey b. m. 12 B)_________________________ 75.979

Elvaton post office, 100 feet south of station, in north foundation of 

water tank; aluminum tablet stamped " 69 Adj. 1903 "_______ 69.163

Benfleld, in southeast foundation wall of D. L. Stone's house; aluminum tablet stamped " 110 Adj. 1903 "__________________ 109.197

Waterbury, 0.5 mile north of, in east wall of railway bridge over 

highway; aluminum tablet stamped " 92 Adj. 1903 "________ 91. 504

Conaways, 0.3 mile northwest of highway bridge over Little Patuxent 

River, in southeast abutment wing wall; aluminum tablet stamped 

"53 Adj. 1903 _______ 52.431

Conaways, 4 miles northwest of Philadelphia, Baltimore & Washington R. R. bridge over Little Patuxent River, in south abutment; 

copper bolt _ _ _ ______ 74.945

At Jones Station on Maryland Electric Ry.2

Jones, in southeast corner of foundation of Mr. Jones's warehouse; 

aluminum tablet stamped " 69 Adj. 1903 "_______________ 68.100

At Odenton and Severn stations on Philadelphia, Baltimore & Washington R. R,

Odenton, inside yard at station, northwest corner; iron post stamped 

"160 Adj. 1903"________________________________ 160.089

Severn, 20 yards east of station, 410 feet south of milepost 110, east 

of track; iron post stamped "167 Adj. 1903"____________ 166.820

1 Coast and Geodetic Survey bench mark " Woods" was checked by two independent 

lines from bench mark " Obs " and appears to have settled 0.34 foot; the doorstep was 

badly out of plumb.

2 Set from adjusted Maryland State Geological Survey levels.
PRIMARY LEVELING. 23 

" At Dorsey.

Dorsey, east of railroad, south of highway, in west foundation wall; 

at northwest corner of store; aluminum tablet stamped " 121 Adj. Feet.

1903 " ____________________________________ 120. 500

LAUREL QUADRANGLE.

[Latitude 39°-39° 15'; longitude 76° 45'-77°.] 

At Bowie.

Bowie, in south foundation wall of Imperial Hotel; aluminum tablet 

. stamped "154 Adj. 1903"________________________ 153.820 

Bowie, on stone east of tower east of Philadelphia, Washington & 

Baltimore E. E. track; copper bolt___1______________ 148.600

Along Baltimore & Ohio R. R.1

Laurel, on southwest corner of Main Street and Washington Avenue, 

in east face at northeast corner of large brick store building, 3 feet

above ground; aluminum tablet stamped " 156 Adj. 1913."_____ 155.484 

Waterloo, at northeast corner of crossroads, in southeast corner of 

south foundation wall of house; aluminum tablet stamped '* 232 

Adj. 1903 " _________________________________ 231.551 

Annapolis Junction, overhead bridge, in east foundation wall of north 

abutment; copper bolt _________________________ 174.540

Annapolis Junction, warehouse of Alphonso Latchford, in southeast 

face of central brick foundation pier; aluminum tablet stamped 

" 171 Adj."___________________________________ 170. 749

From Ellicott City southwest along highway to Clarksville.

Columbia, in south foundation wall of post-office building; aluminum 

tablet stamped "402 Adj. 1904"____________________ 402.378

Elioak, in southeast corner of foundation wall of store and post 

office; aluminum tablet stamped "433 Adj. 1904"_________ 432.697

Clarksville, in southeast corner of stone building, store and post 

office, 2 feet above ground; aluminum tablet stamped "487 Adj

1904 "______________________________________ 486. 700

From Ammendale west along highway to Fairland, thence north to Burtonsville, 

thence northwest to Ashton, thence northeast to Clarksville.

Ammendale, between Baltimore & Ohio E. E. tracks, opposite milepost marked "Baltimore 26 miles;" vertical rail section______ 137.839

Ammendale, in southeast corner of Lasalle Academy building; 

aluminum tablet stamped "182"________-_____ 181.970

Ammendale, 3.2 miles northwest of, at main crossroads in woods, 

15 feet east of roads; iron post stamped " 279 "_________ _ 278.918

Fairland, 50 feet east of road, southwest corner of frame house, in

foundation; aluminum tablet stamped " 414 "_ ____ 413. 896

Burtonsville, 0.3 mile northwest of, northwest corner of Liberty 

Grove Church; aluminum tablet stamped "482"__________ 481.889

Spencerville, 0.1 mile west of, 60 feet south of road, 2 feet from 

northwest corner of house, in stone; aluminum tablet stamped 

"516 B "_____________________________________ 516.364

1 Bench marks set in 1905 and rechecked in 1906.
24 . SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Ashton, 2.4 miles northeast of, Snell Bridge over Patuxent River, at 

south end of west abutment, in bridge seat; aluminum tablet Feet, 

stamped "294 "______________________________ 293.476

Washington quadrangle. 

MONTGOMERY COUNTY.

The elevations in the following list were determined by spirit leveling extended from the precise-level line run from Great Falls, Md., 

to Lock 8 along the Chesapeake & Ohio Canal. They are based upon 

Coast and Geodetic Survey bench mark F at Great Falls, the bottom 

of a square cut on the west wall of Lock 20, 0.2 meter west of edge 

and 1.65 meters south of north gate. The accepted elevation of this 

mark is 166.592 feet above mean sea level. The main line along the 

Chesapeake & Ohio Canal below Lock 8 was leveled twice with a 

Y level in one direction and once in the opposite direction with an 

alidade used as a level. Spur lines were run with a telescopic alidade; 

single to determine water-surface elevations, and double where gages 

were established.

The leveling was done in December, 1910, by C. E. Cooke.

WASHINGTON QUADRANGLE.1

[Latitude 38° 45'-39° ; longitude 76° 45'-77° 15'.]

From Lock 8 southeast along Chesapeake & Ohio Canal to Chain Bridge (double

run level line).

Lock 8, on north wall, on north capstone of east end; bronze tablet Feet, 

stamped " 69 Prim. Trav. Sta. No. 3 "__________________ 69. 034

Lock 7, 0.4 mile southeast of, 150 feet southeast of little cottage with 

green blinds, 20 feet south of towpath, 3 feet above ground, in 

arched root of tree; copper nail______________ ____ ___ 53.56

Lock 7, 0.9 mile southeast of, 10 feet west of towpath, in stump; copper nail_____-__ _ 53.10

Lock 7, 1.1 miles'southeast of, in stump; copper nail__________ 54.16

Lock 5, 1,000 feet south of, 20 feet west of towpath, in small stump; 

copper nail.____________ __ _ _ ___ 41. 55

Elevations along Potomac Elver determined by spur lines (double run where 

gages are connected with).

Lock 14, 31 feet upstream from gage, on east bank of river, on rock;

chiseled square______:__________________ _ 49. 79 

Lock 9, 0.2 mile southeast of, on west side of towpath, in stub of small

tree; copper nail__ _ ____ _ 69.49 

Lock 8, 6.2 feet upstream from gage on east bank of river, in limb of

tree; copper nail__________________._________.___ 50.61 

Lock 7, opposite, on east bank of Potomac River, 6.5 feet downstream

from gage, on rock; chiseled mark and painted circle______;_ 41.42 

Lock 6, 0.4 mile northwest of, on east bank of river, 8 feet upstream

from gage No. 3, in root of tree; copper nail______ _ _ 41. 57

1 For elevations in Washington quadrangle in Virginia see Bull. 562.
PEIMAEY LEVELING. 25

Washington quadrangle. 

PRINCE GEORGES COUNTY.

The elevations in the following list are based upon bench marks of 

the Pennsylvania E. E. at Bennings, D. C., and bench, mark G of the 

Coast and Geodetic Survey at Alexandria, Va. 

. The leveling was done in 1912 by R. C. Seitz.

WASHINGTON QUADRANGLE.

From Bennings, D. C., north to Chesapeake Beach R. R., thence east along said 

railroad 5.5 miles to Ritchie, thence south along highways through Forestville 

and Camp Springs to Clinton, thence west through Friendly to Broad Creek, 

thence north and west to Alexandria, Va.

NOTE. An "error of 0.44 foot was distributed in this line. 

Milepost marked " C. J. 3 M," about 700 feet.east of, in support of Feet.

overhead bridge; copper nail painted "150.2"___________ 150.15 

Milepost marked " C. J. 4 M," in south side at base; spike painted

" 158:2 " _____________________________________ 158.08 

Milepost marked " C. J. N. 5 M "; spike in base painted " 190.8 "___ 190.73 

Chesapeake Junction, 2.8 miles east of, railroad bridge over private

road, in east end of south guard rail; copper nail painted " 163.7 "_ 163. 62 

Ritchie, in front entrance to general store; aluminum tablet stamped

" Prim. Trav. Sta. No. 2, 165, 1912, SZ "________________ 165.08 

Ritchie, 0.7 mile south of, west of road and about 50 feet north of

 gate, in stump of fallen tree; copper nail painted " 261.9 "____- 201. 78 

Forestville, in southwest angle of crossroads, in root of maple tree;

spike painted " 280.1"__________________________ 279.99 

Forestville, 1.75 miles south of, in west coping of small concrete

culvert; aluminum tablet stamped "252, 1912, SZ"_________ 251.891 

Forestville, 2 miles south of, in southwest angle of crossroads, in root

of oak tree; copper nail painted "268.1"_____________ 267.88 

Camp Springs, 0.75 mile northeast of, at T road west, 25 feet west of

house, in top of stump; copper nail painted "276.8"_______- 276.58 

Camp Springs, southwest corner of crossroads, in coping of culvert;

aluminum tablet stamped " Prim. Trav. Sta. No. 3, 266, 1912, SZ "__ 265. 56 

Camp Springs, 1.5 miles south of, 200 feet north of T road east, in

west coping of concrete culvert; chiseled square painted " 248.9 "~ 248. 64 

Clinton, 300 feet north of crossroads, in coping at north end of concrete culvert; aluminum tablet stamped " 245, 1912, SZ "___,___ 244.46 

Clinton, 0.8 mile west of, in west end of box culvert; spike painted

" 238.9 "____________________________________- 238. 68 

Clinton, 2 miles southwest of, in north angle of T road northwest,

in root of small cedar tree; copper nail painted " 246.1"_ 245.83 

Clinton, 2.8 miles west of, just east of Tinkers Creek, on south side

of road, in top of fence post; copper nail painted "136.8" 136.28 

Friendly, 1.5 miles northeast of, on north side of road at T road

north, about 35 feet northeast of mail box, in small cedar near

fence; copper nail painted "239.8"______ ____ _ 239.26 

Friendly, 1.5 miles northeast of, in triangular plot between roads,

at T road north; iron post stamped " 242, 1912"___________ 241.389 

Friendly, at T road south, in center of road, in red sandstone;

chiseled square painted "231.0"___________________- 230.37
26 SPIRIT LEVELING IK MARYLAND, 1896 TO 1911.

New Glatz, 1.25 miles south of, at T road east, in west end of small Feet.

bridge; nail painted "10.4"______________________ 9.54 

New Glatz, 1.25 miles-south of, bridge over Broad Creek, in south

end of west abutment; aluminum tablet stamped " 17, 1912, SZ "__ 16.183 

Alexandria, Va., opposite, on east side of Potomac River, at water's

edge, in top of D. C. line post; cross cut____ ______ 2.94

Indian Head, Nanjemoy, and Stafford quadrangles. 

CHARLES AND PRINCE GEORGES COUNTIES.

The elevations in the following list were determined by primary 

levels connecting Coast and Geodetic Survey gage bench marks at 

Clifton, Marshall Hall, and Posey's wharf, Md., and accord approximately with mean sea level.

The leveling was done by A. F. McNair in 1911.

INDIAN HEAD QUADRANGLE.* 

[Latitude 38° 30'-38° 45'; longitude 77°-77° 15'.]

From Marshall Hall south along highway to point near Fort Tobacco, thence 

- west to Posey's wharf.

Marshall Hall, near east side of wharf, in top of stone abutment, Feet.

about 3 inches from northeast corner; cross cut (C. & G. S. b. m.) _ 2. 73 

Marshall Hall, 0.9 mile south of, on west side of road at three

corners, in root of oak tree; copper nail stamped "45.5"_____ 45.49 

Marshall Hall, 1.9 miles south of, on east side of road at three

corners, in root of oak tree; copper nail stamped " 39.1"____.__ 39.06 

Marshall Hall, 2.7 miles south of, at east end of Oswold Thee's house,

in north side of brick chimney, 3 feet above ground; aluminum

tablet stamped "25 Md"________________________ 25.317 

Marshall Hall, 3.1 miles south of, on east side of road, middle of hill,

in root of oak tree; copper nail stamped " 120 "___________ 120.33 

Pomonkey, 2.3 miles north of, on east side of road at three corners,

in root of pine tree; copper nail stamped " 185 " _ 185.04 

Pomonkey, 1.4 miles north of, on east side of road at three corners, in

root of stump used as corner fence post; copper nail stamped

" 180.3 "_____________%_____________________ 180.28 

Pomonkey, 1.1 miles north of, on east side of road, 150 feet north of

intersection at four corners,' in root of oak tree; copper nail

stamped " 179.3 "______________________________ 179.28 

Pomonkey, 0.5 mile north of, on east side of road at three corners, in

root of pine tree; copper nail stamped " 174.0 " 173.97 . 

Pomonkey, southwest corner foundation pier to schoolhous_e, in west

side of; aluminum tablet stamped "168 Md"____________ 168.453 

Pomonkey, near post office, on east side of road at three corners, in

root of tree; copper nail stamped " 161.6 "___________-__ 161.62 

Pomonkey, forks in road south of, west side of road between store and

blacksmith shop; chiseled cross on bowlder, marked " 175.3 "____ 175. 29 

Pomonkey, 1.8 miles south of, at top of hill, on east side of road, in

root of oak tree; copper nail stamped "172.3" _____'__ 172.32

1 For elevations in Indian Head quadrangle in Virginia see Bull. 562.
PRIMARY LEVELING. 27

Pomonkey, 3 miles south of, on east side of road at three corners, in Feet, 

root of oak tree; copper nail stamped " 150.2 "___________ 150.16

Pomonkey, 3.9 miles south of, in east side of brick stable belonging to 

Christian Jensen, at southeast corner, 4 feet above ground; aluminum tablet stamped " 152 Md "___________________ 151.610

Pomonkey, 5.3 miles south of, west side of road, in root of oak tree, 5 

feet from trunk; copper nail stamped " 182.7 "__________ 182.70

Pomonkey, 6.4 miles south of, roads east-west-north, in root of oak 

tree on south side of road; copper nail stamped "170"______ 170.02

Pomonkey, 7.5 miles south of, roads north-south-west, on east side 

of road at edge of woods, in root of oak tree; copper nail stamped 

" 162.1" ___________________________________ 162.12

Port Tobacco, 1.6 miles west of, 1.1 miles north of four corners on 

. Port Tobaccq-Pisgah road, on west side of road, in woods; chiseled 

cross on top of bowlder, marked " 151.4 "_____________ 151.34

Port Tobacco, 2.4 miles west of, in southwest corner of burned brick 

building formerly used as county house, 5 feet above ground; 

aluminum tablet stamped " 181 Md "______________ 180.590

Port Tobacco, 2.5 miles west of, on north side of road at four corners, in root of gum tree; copper nail stamped " 171.1"_ ____ 177.06

Port Tobacco, 3.6 miles west of, on south side of road, in root of 

large water-oak tree; copper nail stamped " 166.5 "_________ 166.48

Pisgah, 2.5 miles east of, on south side of road at three corners, 

in root of oak tree; copper nail stamped " 163.7 "________ 163.72

Pisgah, 2 miles east of, on east side of road at three corners, 

in root of small oak tree; copper nail stamped "150"_______ 149.82

Pisgah, 1.4 miles east of, in south side of southeast corner -foundation pier to Smith's Chapel; aluminum tablet stamped " 159 Md " - 158.961

Pisgah, 0.4 mile east of, on north side of road at three corners, in 

root of water-oak tree; copper nail stamped " 121.8 "________ 121.78

Pisgah, in front of Hotel Braganier, in root of oak tree; copper 

nail stamped " 123.6 "__________________________ 123.55

Pisgah, 0.8 mile west of, on south side of road at three corners, in 

root of red-oak tree; copper nail stamped " 121.8 "______:_ 121. 80

Pisgah, 2.6 miles west of, at intersection of roads, in root of oak tree; 

copper nail stamped "86"_______________________ 86.81

Pisgah, 2.9 miles west of, 15 feet south of center of road, in bowlder; 

aluminum tablet stamped " 34 Md "__________I_______ 34.398

Posey's wharf, 3.4 miles northeast of, .on north side of road at 

three corners, in stump; copper nail stamped " 105.9 "______ 105.85

Posey's wharf, 2.2 miles northeast of, on west side of road at 

three corners, in root of oak tree; copper nail stamped " 65.1"__ 65.01

Posey's wharf, 1.5 miles northeast of, at church at three corners, 

in root of pine tree; copper nail stamped "59.8 "__________ 59.75

Posey's wharf, 1.1 miles northeast of, on west side of road at three 

corners, in stump; copper nail stamped " 12 "____________ 12.74

Posey's wharf, 35 paces east of shore end of wharf, in horizontal 

cut in root of maple tree, with three nails driven in flush (C. & 

G. S. No. 2.)________________________________ 2.26

Posey's wharf, 16 paces southwest of shore end of wharf; horizontal 

cut in root of cherry tree, with three nails driven in flush (C. & 

G. S. No. 1) _ __________________________ 7.590
28 SPIRIT LEVELING Iff MABYLAttD, 1806 TO 1011.

From point 8 miles east of Fisgah south 1.75 miles along highway (part of line 

to Clifton Beach).

Hilltop, 1.9 miles north of, on west side of road at three corners, Feet. 

in top of old stump; copper nail stamped " 140.4 "_________ 140.41

From point 2.6 miles west of Port Tobacco south along highway 0.8 mile (part 

of double-run spur line to McConchie).

McConchie, 0.2 mile north of, at intersection of roads; painted 

, square on large bowlder, marked " 162.5 "_____________ 162.52

NANJEMOY QTTADBANGLE.

[Latitude 38° 15'-38° 30'; longitude 77°-77° 15'.]

From point near Hilltop west along highway to Ironsides, thence south to Grayton, thence to Clifton Beach.

Hilltop, 1.4 miles north of, in front of store at three corners, in root 

of water-oak tree; copper nail stamped "147.3"_________ 147.24

Hilltop, in house owned by Fred Davis, in south side of brick chimney, about 4 feet above ground; aluminum tablet stamped " 133 

Md " ______ ___________________________ 132. 804

Hilltop, 0.7 mile southwest of, south side of road, at three corners, in 

top of post used in retaining wall; copper nail stamped " 35.2 "__ 35.21

Hilltop, 1.7 miles west of, on north side of road at three corners, 

in root of stump; copper nail stamped " 138.9 "___________ 138.91

Hilltop, 2 miles west of, on southwest corner of intersection of roads, 

in root of small pine stump; copper nail stamped " 142.6 "___ 142. 55

Ironsides, in front of store, in root of small tree; copper nail stamped

" 126.0 "___________________________________... 125. 97

Ironsides, 0.8 mile west of, on south side of road at three corners, in 

root of small tree; copper nail stamped "135.4"__________ 135.37

Ironsides, 1.1 miles southwest of, in woods, on east side of road at 

three corners, in root of stump; copper nail stamped " 139.0 "__ 138.94

Mount Hope, 0.5 mile north of, on west side of road at angle, in root 

of double red-oak tree; copper nail stamped "119.1"____'.-__ 119.09

Bethel, near Mount Hope Church, in south side of southeast corner of schoolhouse; aluminum tablet stamped " 113 Md "_______ 113. 094

Mount Hope, 1.6 miles'south of, on south side of road, in root of redoak tree; copper nail stamped "84.5"_________________ 84.51

Mount Hope, 1.8 miles south of, on north side of road at three corners, in root of cedar tree; copper nail stamped " 74.8 "___ 74.76

Cross Roads, at four corners, in northeast corner of roads, in root of 

water-oak tree; copper nail stamped "81.3"_________ 81.32

Grayton, in front of house owned by Price Gray, east side of top of 

highest concrete step; aluminum tablet stamped " 70 Md 1911" 70.138

Grayton, 1 mile south of, in forks of road, in root of oak tree; copper 

nail stamped "94.4"______________________ 94.38

Clifton Beach, 3.2 miles east of, 150 feet west of run, on north side 

of road, in root of oak tree; copper nail stamped " 20.7" 20.63

Clifton Beach, 2.7 miles east of, 300 feet east of three corners, on 

south side of road, in root of large oak tree; copper nail stamped 

" 77.5 "____________________________________ 77. 50

Clifton Beach, 2 miles east of, on south side of road at intersection; 

painted square on bowlder, marked "74.7" 74.65
PRIMARY LEVELING. 29

From point southwest of Fort Tobacco along highway to point 1.8 miles south 

of HcConchle (part of double-run spur line).

McConchie, 0.1 mile south of, on west side of road at three corners, Feet, 

in root of gum tree; four nails marked " 144.4 "__________ 144.29

McConchie, 1.8 miles south of, in middle of south side of house owned 

by W. J. Smythe, 4 feet above ground; aluminum tablet stamped 

"151 Md. 1911"______________________________ 150.809

STAFFORD QUADRANGLE.

[Latitude 38° 15'-38° 30'; longitude 77° 15'-77 8 30'.] 

At Clifton Beach.

Clifton Beach, 208 feet northeast of shore end of old wharf, in root 

of small cedar tree; horizontal cut (C. & G. S. b. m. No. 2)____ 5.860

Ijamsville, Mount Airy, Rockville, and Seneca quadrangles.

FREDERICK, HOWARD, AND MONTGOMERY COUNTIES.

The elevations in the following list are based on Baltimore & Ohio 

R. R. precise-level bench marks.

The leveling in Ijamsville, Mount Airy, and Seneca quadrangles 

was done in 1906 by R. A. Farmer; in Rockville quadrangle partly 

in 1904 by Ralph Hutchins and partly in 1906 by T. A. Green and 

W. 0. Tufts.

MOUNT AIRY QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 77°-77° 15'.] 

From Cedar Grove northeast along highway to Mount Airy.

Damascus, Dr. B. F. Lansdale's house, southeast corner of founda- Feet.

tion; tablet stamped "845"_______________________ 845.632 

Ridgeville, Nelson's Hotel, southeast corner of coping of yard; tablet

stamped " 817 '»______________________________ 817.094

From Mount Airy northwest along highway to crossroads 1 mile north of 

New London, thence north to Libertytown, thence east to Winfleld, thence 

south to Woodbine.

Libertytown, Mrs. Carter's house, northeast corner of foundation; 

tablet stamped " 523 "__________________________ 523. 854

Unionville schoolhouse, 8 feet east of main entrance, in stone 'foundation ; tablet stamped " 450 Maryland " ____^__ 450.030

Taylorsville, 1.5 miles west of, in south wall of Franklin schoolhouse; 

primary-traverse station 46A, stamped "882" _________ 882.782

Taylorsville schoolhouse, at northeast corner, in foundation; aluminum tablet stamped "819"______________ ______ 819.523

Day, in east foundation of church, at southeast corner, tablet 

stamped " 768 "_______________________________ 769.045

From Woodbine south along highway to Unity.

Lisbon, on east side of wagon road, at southwest corner of Mr.

Lascey's house, in foundation; tablet stamped " 591"______ __ 591.972 

Florence, northeast corner of store, in foundation; tablet stamped

" 627 " __________________ ____ _______ 627.846
30 .SPIRIT LEVELING IN' MARYLAND, 1896 TO 1911.

IJAMSVILLE QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 77° 15'-77° 30'.] 

From Clarksburg northwest to Frederick Junction.

Hyattstown, south abutment of bridge over Little Bennetts Creek, Feet.

southeast corner of bridge seat; tablet stamped "362"_____ 361.780 

TJrbana, near northwest corner of former post office, in west wall;

tablet stamped " 468 "___________________________ 467.661 

Frederick Junction, highway bridge over Monocacy River, southwest

corner of south abutment, in coping stone; tablet stamped " 253 "__ 253. 067 

Frederick Junction, Baltimore & Ohio R. R. bridge over Monocacy

River, east abutment, northeast mud wall; copper bolt______ 266.147

From Frederick Junction north to Charlesville, thence east through Walkersville and Mount Pleasant to Libertytown.

Frederick, 300 feet east of station, about 15 feet south of track, in 

natural rock; copper nail (Baltimore & Ohio R. R. precise-level 

mark) _____________________________________ 289.294

Frederick, south side of Church Street, between North Market and 

Court streets, Jacob Rohrback's residence and office, stoop to office, 

top step, southwest corner; tablet stamped " 296 "__________ 295. 665

Charlesville, bridge over Tuscarora Creek, southwest coping stone 

of. south abutment; tablet stamped " 367 "______________ 366. 705

Walkersville, 2 miles west of, bridge over Monocacy River, north end 

of center pier, primary-traverse station 547; tablet stamped " 283 "_ 282.931

Walkersville, Walkersville Savings Bank, in front wall, 2 feet below 

window sill; tablet stamped " 320 "__________________ 319.664

Mount Pleasant, Clayton Zimmerman's brick store, 2 feet below

window sill; tablet stamped "475"_________________ 475.191

Libertytown, 2.5 miles southwest of, crossroads at Chestnut Grove 

School No. 5, south foundation wall near west corner of schoolhouse, 0.5 foot above ground; tablet stamped " 619 "_________ 618.847

At crossroads 1.2 miles north of New London.

New London, 1.2 miles north of, at northwest corner of road crossing 

. on Libertytown pike, in flint rock 1 by 2 by 3 feet; aluminum tablet 

stamped " 519 "_________________-____________ 518.970

ROCKVILLE QUADRANGLE.

[Latitude 39°-39° 15'; longitude 77°-77° 15'.] 

From Ashton west to Sandy Spring and return.

Sandy Spring, 30 feet south of road, granite slab at entrance to the 

office of the Mutual Fire Insurance Co.; aluminum tablet stamped 

" 484 '"_________________________-_____________ 483. 735

Clarksville, 3.9 miles southwest of, north of highway, at Patuxent 

River, 50 feet west of center of bridge, 2.5 feet from east end of 

large flat rock; aluminum tablet stamped " 316 Adj. 1904 "____ 315. 800

Unity, 35 feet west of former post office, south of -highway, in northeast foundation wall of Ernest Gregg's tenant house; aluminum 

tablet stamped " 520 Adj. 1904 "_________________.___ 520.000
PBIMABY LEVELING. 31

Unity, 2.1 miles southwest of, at Hawlings River, in west end of 

northeast abutment, on bridge seat, 1.7 feet below floor surface; Feet, 

aluminum tablet stamped " 457 Adj. 1904 "______________ 456. 962

Laytonsville, in south foundation wall of store and post office, at 

northwest corner of crossroads; aluminum tablet stamped "615 

Adj. 1904 " _ _ _.._____________ 615.100

Goshen, in southwest corner of foundation wall of store; aluminum 

tablet stamped " 425 Adj. 1904 "___________________ 425.069

Brink, in east foundation wall of W. T. Dowden's residence; aluminum 

tablet stamped " 627 Adj 1904 " (primary-traverse station) ____ 627.129

From Brink north to Cedar Grove.

Cedar Grove, in foundation at northwest corner of Upper Seneca 

Baptist Church, 1 foot above ground; tablet stamped " 637 "___.. 637.199

From Kensington north along highway by an indirect route to Olney, thence 

northwest to Laytonsville.

Garrett Park, 60 feet south of road crossing; top of west rail___'_ 300.0 

Wheaton, on south side of store kept by J. C. Cissel; aluminum tablet

stamped "459 " ______________________________ 459.090 

Layhill, in south face at southeast corner of foundation of store kept 

' by W. P. Beal; aluminum tablet stamped "438 "__________ 437.640 

Norbeck, south of road, west of forks, in north foundation wall of

Arthur Stonestreet's store; aluminum tablet stamped " 499 "___ 498.958 

Olney, near southwest corner of town hall, in west face; aluminum

tablet stamped " 544 "__________________________ 543.473 

Olney, 2.6 miles northwest of, at road forks, in east face at northeast

corner of house owned and occupied by Thomas Griffit; aluminum

tablet stamped " 523 "_______________________ .__ 522. 675

From Rockville southwest along highway to Great Falls.

Rockville, top of corner stone in north side of courthouse, 12 feet 

east of entrance, in granite foundation, 1 foot below water table; 

aluminum tablet stamped "451"_ : ___'______ 450.986

Rockville, 3.9 miles southwest of, at road forks east, in chimney on 

north side of schoolhouse; aluminum tablet stamped " 420 "____ 420.060

Great Falls, on the capstone near west end of south wall of Lock 20, . 

Chesapeake & Ohio Canal, 0.2 meter from extreme north and 0.45 

meter from extreme east edge of lock, 1.65 meters from west gate; 

bottom of square (C. & G. S. b. m. F) ___ _________ 166. 592

At Washington Grove and Gaitherslmrg.

Washington Grove, between tracks, opposite milepost 21; rail (Baltimore & Ohio R. R. b. m.)________________.________ 518.824

Gaithersburg, R. A. Young's store, northwest corner Fredericksburg 

avenue and Chestnut street; primary-traverse tablet stamped 

" 508 "______________^_____________________ 507.811
32 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

SENECA QUADRANGLES

[Latitude 39°-39° 15'; longitude 77° 15'-77° 30'.] 

At Germantown.

Germantown, 50 feet south of bridge over railroad, west of road, in 

east face at northeast corner of house occupied by C. E. Keeper Feet. 

and owned by H. D. Waters; aluminum tablet stamped "449"__ 449.287

Germantown, in front of station; top of rail______________ 429.50

From Gaithersburg southwest to Darnestown, thence west to Poolesvllle, thence 

north to Barnesville.

Darnestown, Windsor store, in brick foundation to cellar door; tablet

stamped " 436 "___________________1__________ 435.800 

Dawsonville, in north- wall of Allnut ice house; tablet stamped "305"_ 305. 200 

Poolesville, in south wall of T. E. Hall's brick house; tablet stamped

" 415 " ______________________________________ 414. 589

From Poolesville southwest to Edwards Ferry.

Edwards Ferry, Chesapeake & Ohio Canal, southwest corner, Lock 

25; primary-traverse station 88, tablet stamped " 207 "_______ 206.365

From Brink northwest to Clarksburg.

Clarksburg, near southwest corner of M. E. Church South, in west 

foundation wall; aluminum tablet stamped "658"_________ 658.452

, From Washington, D. 0., to Washington Junction.

Milepost " W. 37," 225 feet west of, at southeast corner of culvert;

copper bolt (b. m. 38)_____ ____________________ 284.448

Tuscarora, 150 feet west of milepost 39, south end of east wall of box

culvert; copper bolt (b. m. 40A)____;_______________ 226.092

Antietam and Martinsburg quadrangles. 

FREDERICK AND WASHINGTON COUNTIES.

The following elevations are based on precise-level lines of the 

Coast and Geodetic Survey and the Baltimore & Ohio R. E.

The leveling was done mostly in 1907 by W. R. Winstead; but 

some work was done in each quadrangle in 1908 by J. M. Harris.

ANTIETAM QUADRANGLE. 

[Latitude 39° 15'-39° 30'; longitude 77° 30'-77° 45'.]

From Harpers Ferry east along Baltimore & Ohio R. R. to Brunswick, thence 

north along highway to Petersville, thence east to Jefferson, thence south to 

Point of Rocks.

Harpers Ferry, 0.6 mile east of, about 2.5 miles west of Weverton,

about 400 feet east of Harpers Ferry tunnel, 300 feet west of mile-;

post B. 81, in box culvert on south side of railroad, in southeast Feet.

abutment; iron plug (Baltimore & Ohio R. R. b. m. 56)______ 280.268 

Sandy Hook, south track, in front of station; top of south rail

marked " 270 U.S."_____________________________ 270. 0

1 For elevations in Seneca quadrangle in Virginia see Bull. 562.
PEIMABY LEVELING. 33

Sandy Hook, 0.5 mile east of, 170 feet west of milepost B. 80, in center 

of double track: iron rod with "X" on top driven in ground, Feet, 

marked "264 U.S.B.M."_________________________ 264.14

Weverton, 125 feet west of station, 50 feet west of road crossing, 15 

feet north of track, in southwest pillar of Baltimore & Ohio R. R. 

water tower; aluminum tablet stamped " Maryland 260 Adj "__ 259.595

Weverton, 2.8 miles east of, 1,000 feet west of Brunswick station, on 

northeast corner of north abutment of culvert; point marked "250 

TJ.S.B.M." ___________________________________ 249. 60

Brunswick, north track at street crossing; top of north rail marked 

" 249.5 U.S."__________________________________ 249. 2

Brunswick, opposite post office, in southeast comer of Savings Bank; 

aluminum tablet stamped " Maryland 266 Adj "___________ 266. 236

Petersville, 0.2 mile east of, at public road fork, in front face (east 

side) of Lutheran Church; aluminum tablet stamped " Md. 524 

Adj "________________________________________ 523.325

Petersville, 2.4 miles east of, at foot of hill, south side of east end of 

covered bridge over Catoctin Creek, on top of large iron bolt; point 

marked " 291 U.S.B.M."_________________________ 290.54

Jefferson, 300 feet west of electric car station, at Frederick-PickeCatoctin road fork, northwest corner of schoolhouse; aluminum 

tablet stamped "Maryland 583 Adj"_____ ___________ 582.787

Jefferson, 1.6 miles south of, at foot of hill at road fork to Catoctin 

station, in southwest abutment of iron bridge over stream; large 

iron bolt marked "417"_________________________ 416.58

Jefferson, 2.5 miles south of, at foot of hill, 600 feet west of brick 

house, on top of northeast abutment of bridge over creek; point 

marked " 454 "_______________________________ 453.85

Jefferson, 3.9 miles south of, at foot of hill, about 1,000 feet north 

of W. C. Adams's residence, in west abutment of culvert over small 

stream; aluminum tablet stamped " Maryland 389 Adj "______ 388.358

From Weverton along highway north to point 2.7 miles north of Rohersville, 

thence east to Middletown, thence south to Jefferson.

Weverton, 1.7 miles north of, 400 feet north of stream, road fork 

west at top of hill, road fork east, on top of stone at blacksmith 

shop; point marked "545" ' ___ ___ 544.53.

Brownsville, at road fork east, northwest corner of post office; aluminum tablet stamped "533"______________________ 532.182

Gapland, 100 feet north of station, on rock near telephone pole; point 

marked " 619.5 " ____________ _ _ ___ 619.11

Rohersville, 10 feet south of main entrance of post office, southeast 

corner of front face; aluminum tablet stamped " 624" _ 623. 866

Rohersville, 1.8 miles north of, on northeast corner of southwest abutment of bridge over stream; point marked " 480 " _ 479.71

Rohersville, 2.8 miles north of, 400 feet west of T road, 30 feet north 

of road, in stone; aluminum tablet stamped " Maryland 508 Adj "_ 507.388

Rohersville, 5 miles northeast of, at top of mountain, in front of house 

at second-class crossroads, 4 feet north of road, on top of stone; 

point marked "1059" __ ___ 1 1,058.45

Bolivar, at crossroads, at southwest corner of stone-arch bridge over 

stream, on top of rock; point marked " 517 " 516.96

45924° Bull. 563 14 3
34 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Bolivar, 1.1 miles northeast of, at foot of hill, at southwest end of

culvert over small stream, in front of brick house, on top of land- Feet, 

line stone; point marked "445.6"___________________ 445.16

Middletown, in front face of post-office building; aluminum tablet 

stamped " Maryland 547 Adj "____________________ 546.623

Middletown, 2.7 miles south of, at foot of hill near small stream, 200 

feet west of house, 250 feet north of creamery, 15 feet west of road, 

in top of large rock; aluminum tablet stamped "Maryland 482 Adj"_ 481.492

Middletown, 4.6 miles south of, at foot of hill, at second-class crossroads, on northeast abutment of bridge over stream; point marked 

" 432 " _ _ __________________________ 431. 25

Prom Harpers Ferry north to Antietam Creek.

Harpers Ferry, 0.9 mile north of, 300 feet east of lock on canal, at 

second-class road fork northeast, 10 feet west of road, on top of 

large rock; point marked "276"________'. __________ 275.66

Harpers Ferry, 3.3 miles north of, at foot of hill, on northwest abutment of bridge over stream; point marked "422"__________ 421. 28

Harpers Ferry, 4.2 miles north of, at crossroads near schoolhouse and 

church, in front face of schoolhouse, 4 feet east of main entrance; 

aluminum tablet stamped " Maryland 623 Adj "___________ 622.904

Harpers Ferry, 6.6 miles north of, on northwest corner of Chesapeake 

& Ohio Canal lock; point marked "300"_______________ 299.93

Harpers Ferry, 7.9. miles north of, at Antietam Creek, in northwest 

end of west abutment of Chesapeake & Ohio Canal aqueduct; aluminum tablet stamped " Md. 301 Adj "__________________ 300. 270

From Sharpsburg northeast to Xeedysville, thence southeast to point 2.7 miles 

north of Rohersville.

Sharpsburg, in front face of post-office building, 20 feet north of main 

entrance; aluminum tablet stamped " Maryland 413 Adj "_____ 412.857

Sharpsburg, 1.4 miles northeast of, at foot of hill, 300 feet southwest 

of tollgate; nail in center of north side of iron bridge over Antietam Creek, marked " 337 "_______________________ 336. 73

Keedysville, 50 feet north of railroad, in front face of hotel; aluminum 

tablet stamped " Maryland 404 Adj "__ ,_____-_ - _- 403.467

Keedysville, 1 mile southeast of, at road fork north, at arch bridge 

over small stream; center of stone marked "402.5".__________ 402.08

From Myersville south to Middletown.

Myersville, 2.3 miles south of, north-south road at T road east, in 

northeast corner between county road and railroad, on top .of 

large rock; chiseled square marked "G.S.D644B.M."______ 643.84 

Mount Tabor, in front of station; top of rail____________ 584.3 

Mount Tabor, 330 feet southwest of, in northeast corner of Peter 

Leatherman's brick house; aluminum tablet stamped " 588 Md "__ 587.538

MARTINSBUKG QUADRANGLE. 1

[Latitude 39° 15'-39° 30^ longitude 77° 45'-78°.]

From Antietam west along highway to Shepherdstown, W. Va., thence northeast to Sharpsburg, thence north to Grimes.

Shepherdstown, 1.3 miles northeast of, 150 feet west of second-class 

road crossing, 100 feet west of barn, on northwest abutment of culvert of Norfolk & Western Ry.; point marked " 430 "____ 429.36

1 For elevations in Martinsburg quadrangle in West Virginia see bulletin in preparation.
PRIMARY LEVELING. 35

Grimes, 1.2 miles south of, 500 feet south of county-road crossing,

west of railroad at cut, on large rock; chiseled square marked Feet.

"G.S.DB.M. 415" _____________________________ 414.88 

Grimes, 2.2 miles south of, on east side of railroad, in north mouth of

cut, on top of rock; chiseled square marked " G.'S.QB.M. 412 "__ 411. 24 

Mondel, in front of station; top of rail__________________ 418. 6 

Mondel, 2 miles south of, on east side at north end of cut, on top of

rock; chiseled square marked " G.S.DB.M. 458"__________ 457.17 

Sharpsburg, in front face of post-office building, 20 feet north of main

entrance; aluminum tablet stamped "Adj 413" 412.857

Emmitsburg, Hagerstown, Taneytown, and Williamsport quadrangles.

CARROLL, FREDERICK, AND WASHINGTON COUNTIES.

The following elevations were determined by primary leveling 

extended from Baltimore to Hagerstown, and from the Baltimore 

& Ohio R. E. precise-level line from Relay to Washington Junction. 

The leveling was done in 1908, as follows: In Taneytown quadrangle 

and most of Emmitsburg quadrangle, by C. H. Semper; in Hagerstown and Williamsport quadrangles and part of Emmitsburg quadrangle, by J. M. Harris. Additional leveling was done by Semper 

in Hagerstown and Williamsport quadrangles in 1910.

TANEYTOWN QUADRANGLE. 1

[Latitude 39° 30'-39° 45'; longitude 77°-77° 15'.]

From Westminster west along Western Maryland Ry. to Detour.

Westminster, in fifth step of main entrance to courthouse; bronze peet.

tablet stamped "774"________ .774.337 

Spring Mills, in front of station sign; top of rail . 607.0 

Spring Mills, 250 feet west of station, at east end of north side of 

railroad culvert, on top of mud wall; chiseled square marked 

" U.S.DB.M. 602 "_____________________________ 602.11 

Avondale, in front of station; top of rail 560. 3 

Avondale, 210 feet west of station, on north side of track, on top of

railroad culvert; chiseled square marked "U.S.OB.M. 559" 558.57 

Medford, in northwest corner of foundation of C. E. Engle's building 

at station; aluminum tablet stamped "531" _.__________ 531.201

Medford, in front of station; top of rail_____ __ 529.8 

Wakefield, in front of station; top of rail _ _ 515. 7 

New Windsor, 1.4 miles east of, south of track, on top of railroad

culvert; chiseled square marked " U.S.DB.M. 501"________ 500. 75 

New Windsor, 0.3 mile east of, north side of east abutment of railroad 

bridge, in back wall; aluminum tablet stamped "453" ______ 453.225

New Windsor, in front of station; top of rail 445.5 

Linwood, in front of station; top of rail_________________ 415.6 

Union Bridge, 0.8 mile east of, north side of east abutment of railroad bridge, on top of retaining wall; chiseled square marked 

" TJ.S.DB.M. 405 "_____________________________ 404. 36 

Union Bridge, at railroad station, in front face at southeast corner of 

First National Bank; aluminum tablet stamped " 402 "_______ 402.004

Union Bridge, in front of station; top of rail___________-.___ 399. 0

1 For elevations in Taneytown quadrangle in Pennsylvania see Bull. 515.
36 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Middleburg, 1.5 miles east of, on north side of railroad culvert, in top Feet.

of bridge seat of east abutment; aluminum tablet stamped " 398 "__ 398.180

Middleburg, in front of station; top of rail_______________ 461. 4

Bruceville, in front of station; top of rail________________ 452.9

Detour, in front of station; top of rail_________________ 348.9

From Ladiesburgr northeast along Northern Central Ry. to Kingsdale.

Ladiesburg, in front of station; top of rail _ __ ___ 482.3 

Ladiesburg, 1.6 miles north of, south abutment of steel railway 

bridge, east of track, in top of retaining wall; aluminum tablet 

stamped " 403 "______________________________ 402. 880 

Bruceville, 50 feet north of overhead crossing of Western Maryland 

Ry., 6 feet east of track, on concrete foundation to brick gasoline 

house; chiseled square marked "U.S.QB.M. 433"________ 433.22 

Bruceville, in front of station; top of rail________________ 433. 9 

Sharretts, in front of station sign; top of rail______________ 418. 7 

Crabster, in front of station sign at crossing; top of rail_______ 5131 2 

Taneytown, Baltimore Street crossing railroad, east of track, south of 

road, on foundation of railroad-crossing sign; chiseled square 

marked " TJ.S.DB.M. 501"________________________ 500. 51 

Taneytown, in southwest corner of Central Hotel; aluminum tablet

stamped " 524 "_________________~____________ 523. 276 

Taneytown, in front of station; top of rail______________ 500.4 

Taneytown, 1.9 miles north of, at railroad crossing, 10 feet east of 

track, north of road, in foundation of crossing sign; aluminum 

tablet stamped ".494"___________________________ 493.583 

Gait, at station, west of track, south of road, on foundation of cross- 

. ing sign; chiseled square marked " TJ.S.DB.M. 535 "__ _____ 534.27 

Piney Creek, in front of station; top of rail________ ____ __ 513.2

From Kingsdale southeast to Union Mills.

Kingsdale, 3.6 miles southeast of, on Baltimore Pike, in northwest 

corner of front face of P. T. Brown's brick house; aluminum tablet 

stamped " 705 "______________________________ 704.372

Union Mills, in foundation on northwest side of Shriver's grain mill, 

2 feet from corner; bronze tablet stamped " 546 " __________ 544.345

EMMITSBURG QUADRANGLE.*

[Latitude 39° 30'-39° .45'; longitude 77° 15'-77° 30'.] ' - - 

From Walkersville northeast along Northern Central Ry. to Ladiesburg.

McAleer, in front of station; top of rail____ _ _______ 344.1

Woodsboro, in front of station; top of rail 409.9 

Woodsboro, at railway station, in northeast corner of foundation of

flour mill; aluminum tablet stamped " 411"___ _ 411.102 

Le Gore, in front of station; top of rail________________ _ 434.0

New Midway, at station, at road crossing, 8 feet east of track, 6 feet 

north of highway, in foundation of railway crossing sign; aluminum 

tablet stamped " 462 "___ _ 461.456 

New Midway, in front of station; top of rail 463.4

1 For elevations in Emmitsburg quadrangle in Pennsylvania see Bull. 515.
PRIMARY LEVELING. 37

From Detour west and northwest along Western Maryland Ry. to Thurmont 

and Buena Vista Spring.

Detour, 1,300 feet west of station, at road crossing, north of track, on Feet.

outcrop; chiseled square marked "U.S.QB.M. 341"________ 340.90 

Detour, 0.35 mile north of, at railroad crossing, in east face about 6

feet from southeast corner of stone foundation to E. D. Diller's

house; aluminum tablet stamped "Prim. Trav. Sta. No. 1, 447"_ 447.116 

Detour, 3.5 miles west of, on south wall of west abutment of railroad

bridge over river; chiseled square marked " U.S.DB.M. 335 "__ 334.84 

Detour, 2.7 miles west of, 20 feet north of track, east of overhead

bridge, on large rock; chiseled square marked " U.S.DB.M. 407 "__ . 406.39 

Rocky Ridge, in front of station; top of rail_______________ 400. 2 

Rocky Ridge, opposite railroad station, in northwest corner of foundation of Robert Biggs's brick house; aluminum tablet stamped " 397 "_ 396. 938 

Lbys, railroad crossing at station; top of rail______________ 356.2 

Graceham, 700 feet east of station, in west abutment to railroad

bridge over county road; aluminum tablet stamped " 442 "____ 441.698 

Graceham, in front of station; top of rail________________ 448. 5 

Thurmont, 2.1 miles northwest of, high bridge 97; on top of south

end of west abutment; chiseled square marked "U.S.DB.M. 715"_ 714.32 

Thurmont, 2.9 miles northwest of, steel bridge over Owens Creek, in

top of mud wall at south side of west abutment; aluminum tablet

stamped " 779 "______ _______.________________ 779. 048 

Thurmont, 4 miles northwest of, at west end of switch, south of track,

on large rock; chiseled square marked "U.S.DB.M. 889____ 888.96 

Deerfleld,.in front of station; top of rail_________________ 959.6 

Deerfleld, 1.2 miles northwest of, railroad culvert, on top of mud wall

at south end of west wall; chiseled square marked " U.S. D B.M.

1.064 "_______________________________________ 1, 063. 38 

Sabillasville, in southeast corner of front face of St. Marks Lutheran

Church; aluminum tablet stamped "1108"______________ 1,107.481 

Sabillasville, in front of station; top of rail_______________ 1,139. 8 

Highfleld, in front of station; top of rail_______________^_ 1,390.0 

Buena Vista Spring, in front of station; top of rail __ __ 1,339.7

From Thurmont south to Charlesville.

Thurmont, in front .of station; top of rail. _ _ 517.3 

Thurmont, in east face at northeast corner of Thurmont National

Bank Building; aluminum tablet stamped "Prim. Trav. Sta. No.

6, 523" ___________________________________ 522.880 

Thurmont, 2 miles south of, at railroad crossing, 40 feet west of

track, on north margin of road, on top of bowlder; chiseled square

marked "U.S.DB.M. 454"________________.______ 453.97 

Catoctin, in front face of stone furnace building, north side of door;

aluminum tablet stamped " 497 "_____________________ 496. 553 

Lewistown, in front face at north corner of stone house just south of

church; aluminum tablet stamped " 402 "_ _ ___ _ 402.034 

Lewistown, in front of station; top of rail________________ 378.9 

Lewistown, 1.1 miles south of, on top of mud wall at east end of south

wall of concrete railroad culvert; chiseled squai-e marked "U.S.

D B.M. 403 "___________________________"_______ 402. 87
38 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

From Rocky Ridge north to Emmitsburg, thence west to Sabillasville.

Feet.

Motters, in front of station; top of rail_________________ 445.0 

Motters, in front of station, in southeast corner Of foundation of hay

scales; aluminum tablet stamped "445"_______________ 445.052 

Motters, 0.7 mile north of, cattle pass under railroad, on top of east

side of south wall; chiseled square marked " U.S.DB.M. 438 "__ 437.31 

Emmitsburg, in front of station; top of rail_______________ 416. 4 

Emmitsburg, in front face of Dutch Reformed Church; aluminum

tablet stamped "450"_________________________ 449.420 

Emmitsburg, 1.4 miles west of, 50 feet east of crossroads at schoolhouse, on north side of road, on top of large bowlder; chiseled

square marked " U.S.QB.M. 442 " _______________ '. _____ 441.46 

Emmitsburg, 2.3 miles west of, 280 feet west of brick house, south

side of road, on large bowlder; chiseled square marked "U.S.DB.M.

643 "_____..________.________________________ 642. 66 

Emmitsburg, 4.5 miles west of, 10 feet north.of road, on top of large .

rock; chiseled square marked " U.S.DB.M. 1176 "__________ 1,175.09 

Emmitsburg, 5.3 miles west of, at William Miller's house, in northeast

corner of stone foundation; aluminum tablet stamped " 1150 Md "__ 1,149.383 

Emmitsburg, 5.5 miles west of, in forks of road, on top of small

bowlder; chiseled square marked "U.S.DB.M. 1082"_______ 1,081.77 

Emmitsburg, 6 miles west of, north of road, on top of large bowlder;

chiseled square marked " U.S.DB.M. 1008 "______________ 1,007.44 

Emmitsburg, 7.1 miles west of, north of road, 900 feet west of stream,

halfway up hill, on top of large bowlder; chiseled circle marked

" U.S.DB.M. 1041"____________________ i, 040.47

HAGERSTOWN QUADRANGLES

[Latitude 39° 30'-39° 45'; longitude 77° 30'-77° 45'.] 

From Hagerstown north along Cumberland Valley R. R. to Maugansville.

Hagerstown, crossing of Cumberland Valley and Western Maryland 

railroads ___________ ____ ____________________ 590.3

Hagerstown, 1.1 miles north of, under overhead bridge, west side of

track; on rock marked "TJ.S.DB.M. 612"___________'.___ 611.42

Hagerstown, 2.1 miles north of, 120 feet south of milepost 72, on east 

side of track; top of large stone marked "TJ.S.DB.M. 637"___ 637.16

Maugansville, 0.6 mile south of, 212 feet south of milepost 71, 10.6 

feet west of track, on top of large rock; aluminum tablet stamped 

" 636 " _____________________________________ 636.142

Maugansvile, 0.2 mile south of station, west side of track; copper 

bolt in concrete culvert (railroad bench mark)_______ 617.671

Maugansville, in front of station; top of rail 614.6

From Buena Vista Spring west along Western Maryland Ry. to Hagerstown.

Lake Royer, 0.3 mile west of Buena Vista Spring; surface of water

May 22, 1908_____________ _ _ 1,312.8

Pen Mar, 175 feet east of, 10 feet south of track opposite store, on 

top of large bowlder; chiseled square marked " U.S.DB.M. 1248"__ 1, 247.18

Pen Mar, in front of station; top of rail 1,244.1

Blue Mountain, in front of station; top of rail 1,177.7

1 For elevations in Hagerstown quadrangle in Pennsylvania see Bull. 515.
PRIMARY LEVELING. 39

Blue Mountain, in northwest corner of brick railroad station; alumi- Feet.

mini tablet stamped "1189 Md"___________________ 1,188.613 

Blue Mountain, 1 mile west of, 40 feet south of track, on top of large

bowlder; chiseled square marked " U.S.DB.M. 1106"_______ 1,106.07 

Blue Mountain, 2.1 miles west of, 6 feet south of track, on top of

large bowlder; chiseled square marked "U.S.DB.M. 1025____ 1,024.86 

Edgemont, in front of station; top of rail_________________ 965.2 

Edgernont, 225 feet west of station, 40 feet south of track, in north 

foundation wall of Bachtell's store and post office; aluminum tablet 

stamped "961 Md" _________________________ 960.128 

Sinithsburg, in front of station; top of rail____________^__ 798.0 

Srnithsburg, 150 feet west of station, in southeast corner of brick 

warehouse of Western Maryland Ry.; aluminum tablet stamped 

" 800 Md " ___________________________________ 799. 559 

Cavetown, in front of station; top of rail______________ 751.0 

Cavetown, 1 mile west of, 15 feet east of whistle post, 8 feet south of 

track, on top of large bowlder; chiseled square marked " U.S.DB.M. 

697 " _________________________.________ 697.00 

Cavetown, 1.7 miles west of, 8 feet south of track, 400 feet west of 

milepost 80, on rock in bank; chiseled square marked " U.S.DB.M. 

651" ____________________________________ 650.93 

Chewsvijle, in front of station; top of rail__________ 632.6 

Chewsville, in north face at northwest corner of brick railroad station; aluminum tablet stamped "636 Md"__________ 635.514 

Chewsville, 1.1 miles west of, 300 feet east of overhead road bridge, 

4 feet north of track, on top of large bowlder; chiseled square 

marked "G.S.DB.M. 580"________________________ 579.12 

Security, in front of station; top of rail__ __ - 510.1 

Security, 0.4 mile west of, south of track, in top of east back wall of

bridge over Marsh Run; aluminum tablet stamped " 508 Md " 507.747 

Bissell, in front of station; top of rail___ __ 510.5 

Potomac Avenue, in front of station; top of raiL_________ 564.2 

North Junction, main line of Western Maryland Ry. and northbound track of Altenwald cut-off, at frog point; top of rail__ 589.3 

North Junction, intersection of Cumberland Valley and Western

Maryland railroads; top of rail 590.2 

Hagerstown, corner of Washington and Jonathan streets, on Jonathan

Street side of courthouse; water table (C. & G. S. b. m. A)_ ____ 552.035

From Edgemont north along Western Maryland Ry. to Mldvale.

Shockeys, in front of sign; top of rail--_____! 778.2 

From Smithsburg south to Myersville, thence northwest to Hagerstown.

Smithsburg, 2.5 miles south of, on top of Blue Mountain, in northwest 

'corner of roads opposite a.2-story frame house, on top of large

rock; chiseled square marked " G.S.DB.M. 1512 "______ __ 1,511.0.6 

Smithsburg, 3.5 miles south of, 150 feet west of road, at southeast

corner of frame schoolhouse, in east face of stone foundation;

aluminum tablet stamped " 1335 Md "___ ________ 1,334.073 

Smithsburg, 4.6 miles south of, east of road, 50 feet north of 2-story

stone house, on top of bowlder; chiseled square marked " G.S.D

B.M. 1117 "_________'- _ __ ____-_T _ 1,116.44
40 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Smithsburg, 5.6 miles south of, west of road, 20 feet south of wooden 

bridge over stream, on top of flat rock; chiseled square marked Feet. 

" G.S.DB.M. 1035"_____________________________ 1,034.18

Wolfsville, in center of, in northwest corner of crossroads opposite 

J. M. Woolf's house, in face of large curbstone; aluminum tablet 

stamped "1044 Md"___________________________ 1,043.488

Wolfsville, 1.2 miles southeast of, west of road, 150 feet south of road 

forks, on top of large bowlder; chiseled square marked " G.S.D 

B.M. 931"____________________________________ 930. 52

Middlepoint, 0.6 mile south of, west of road, in V of private road, 

on top of large flat rock; chiseled square marked " G.S.DB.M. 

814 "_____________________________________ 813. 66

Middlepoint, 1.6 miles south of, under corner stone in southwest corner of south face of Grossnickles (Dunkard) Church; aluminum 

tablet stamped " 740 Md "________________________ 739.149

Middlepoint, 2.9 miles south of, under northeast corner of iron bridge 

over Catoctin Creek; chiseled square marked " G.S.OB.M. 663" 662.31

Ellerton, 1.4 miles south of, west of road, in east side of stone 

foundation of Tilman Grossnickle's spring house; aluminum tablet 

stamped "582 Md"____________________________ 581.138

Myersville, 1.9 miles north of, on west end of north abutment of 

small wooden trestle over hollow; chiseled square marked " G.S. . 

DB.M. 970 "_________________________________ 969 .60

Wolfsville Crossing, at railroad crossing; top of rail__________ 1,026.3

Wolfsville Crossing, 0.2 mile north of, 80 feet west of railroad, on 

line with second-story windows in east side of John M. Fey's brick 

house; aluminum tablet stamped "1085 Md"____________ 1,084.295

Wolfsville Crossing, 2.5 miles north of, 5 feet east of trolley track, 

390 feet south of railroad -crossing, on top of large rock; chiseled 

square marked " G.S.DB.M. 835"___________________ 834.65

Wolfsville Crossing, 3.1 miles north of, in north end of east face of 

Hagerstown & Myersville R. R. Co.'s brick power house; aluminum tablet stamped "640 Md"____________________ 639.243

Smoketown, at railroad crossing; top of rail______________ 601.6

Wagners Crossroads, in front of station; top of rail_________ 518.0

West Beaver, railroad crossing at south end of station; top of rail_ 493.7

West Beaver Creek, iron bridge over Beaver Creek, north brace of 

bridge, west end of rivet on top; chiseled square marked " G.S.D 

B.M. 480 "_____________________________________ 479. 69

West Beaver Creek, 1.2 miles north of, on east side of road, at crossroads, in north end of west face of brick schoolhouse; aluminum 

tablet stamped " 546 Md "_______'_________________ 545.736

Funkstown, at north end of, in north end of east brick wall of Red 

Man hall; aluminum tablet stamped "479 Md"__________ 478.837

From Hagerstown south to St. James.

Hagerstown, 3.1 miles south of, 10 feet east of railroad, in northwest 

corner of large rock in bank; chiseled square marked " G.S.D 

B.M. 548 "____________________________-_______ 547. 58

Hagerstown, 3.7 miles south of, 450 feet east of railroad, in west end 

of south face of Marsh Church, 2 feet above ground; aluminum 

tablet stamped " 534 Md "____..__________________ 533.332

Hagerstown,. 5.3 miles south of, 10 feet west of railroad, opposite 

school buildings, on large rock in bank; chiseled square marked 

" G.S.DB.M, 487 "_______________________________ 486. 85
PRIMARY LEVELING. 41

From Hagerstown southwest 2 miles along Cumberland Valley B. B. (unchecked

spur line).

Hagerstown, Cumberland Valley R. R., in front of station; top of Feet.

rail _____________________________________ 573.2 

Hagerstown, 0.6 mile west of, at railroad bridge 74; top of rail

(Western Maryland Ry. 554.6)________ __________ 575.3 

Hagerstown, 1 mile west of, 300 feet west of water tank, south of

railroad, on top of rock in bank; chiseled square marked " G.S. .

DB.M. 591"________________________________ 590.739

WILLIAMSPORT QUADRANGLE.1

[Latitude 39° 30'-39° 45'; longitude 77° 45'-78°.]

From Maugansville along Cumberland Valley B. B. to Mason and Dixon.

Maugansville, 1.3 miles north of, 25 feet south of milepost 69, east 

side of track; face of rock cut marked "U.S.DB.M. 569 "_____ 568.70

Mason and Dixon, opposite station, in top of stone monument marking Maryland-Pennsylvania boundary, aluminum tablet stamped 

" 570 "________________________________._____ 570.166

From Mason and Dixon along highway west and south to Chesapeake & Ohio

Canal Lock 2.

Mason and Dixon, 1.1 miles west of, 950 feet west of Gabriel's house, 

on north side of road; spike in root of 5-foot oak tree marked 

" U.S.B.M. 559 "________________.______"_________ 559.026

Mason and Dixon, 2.2 miles northwest of, 20 feet west and 15 feet 

south of Dunkard Church; in root of large oak tree; spike___ 531.88

Mason and Dixon, 3.6 miles northwest of, in patch of woods, at corner 

of wire fence; spike in base of gatepost, marked " U.S.B.M. 489 "__ 488.44

Fairview, 0.6 mile southeast of, east end of bridge over.Conococheague Creek, north end of top of abutment; aluminum tablet 

stamped " 406 "____________.__________________ 405.685

Fairview, 0.8 mile west of, between two gates on north and south 

sides of road, on outcrop; square marked " U.S.B.M. 518 "_____ 517.40

Dryrun, in front face at northeast corner of brick schoolhouse; 

aluminum tablet stamped " 609 "_____________:______ 608.156

Dryrun, 1.4 miles south of, on east side of road; spike in telephone 

pole, marked " U.S.B.M. 554 "______________________ 553. 69

Dryrun, 2 miles south of, at crossroads, northeast corner of Crowe 

schoolhouse; spike in telephone pole, marked "U.S.B.M. 589"___ 588.24

Dryrun, 3.4 miles south of, Montpelier farm, in front face at southwest corner of brick farmhouse; aluminum tablet stamped " 607 "_ 606.927

Clear Spring 1.2 miles north of, north bridge abutment over Little 

Gonococheague Creek, west side; top of bolt in bridge-seat plate, 

marked " U.S.B.M. 544 "__________._______________ 543.40

Clear Spring, in west face at southwest corner of Potomac Hotel; 

aluminum tablet stamped " 566 "____________________ 565. 970

Clear Spring, 0.8 mile south of, at top of hill, at bend in road to 

west; spike in telephone pole, marked "U.S.B.M. 542"______ 541.75

Big Spring, 100 feet north of junction with road leading under railroad, on east side of road; large rock, marked " U.S.QB.M. 426 "_ 425.95

1 For elevations in Williamsport quadrangle in West Virginia see bulletin in preparation.
42 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Williamsport, 7.7 miles west of, two canal locks, 10 feet south of gate, Feet, 

in top of Lock 46, east wall; aluminum tablet stamped " 372 "___ 371.309

Williamsport, 7.8 miles west of, on top course of stone of second 

canal lock above dam 5; chiseled square (Coast and Geodetic 

Survey bench mark No. VI)_____________________ 371.358

From St. James School south to Grimes.

St. James, in front of station; top of rail..._____________ 469,2 

St. James, opposite station, 50 feet from track, under porch of twostory frame cottage; aluminum tablet stamped " 473 Md "____ 472.715 

St. James, 0.9 mile south of, on northeast corner of south bridge seat

of railroad bridge 717; chiseled square marked " G.S.DB.M. 431"__ 430. 81 

Spielman, in front of station; top of rail ______________ 408.2 

Spielman, 0.2 mile south of, railroad bridge 712, on northeast corner

of south bridge seat; chiseled square marked " G.S.DB.M. 404 "_ 403.45 

Grimes, in front of sign; top of rail___________________ 386. 8 

Grimes, 0.4 mile south of, railroad bridge 705, in west end of north 

bridge seat; aluminum tablet stamped "391 Md"_________ 390.628

From Hagerstown southwest along Cumberland Valley R. B. to Potomac River

bridge.

Hagerstown, 3.3 miles west of, 15 feet north of railroad track, on top 

of large rock; chiseled square marked " G.S.DB.M. 548"_____ 547.440

Halfway, 150 feet west of railroad, in front face at southwest corner 

of R. P. Beckley's concrete store, on Williamsport pike; aluminum 

tablet stamped "539 Md"________________________ 538.764

Halfway, in front of station; top of rail_________________ 542.7

Halfway, 0.6 mile southwest of, 15 feet from track, on north side of 

cut between milepost 78 and semaphore, on top of rock; chiseled 

square marked " G.S.DB.M. 525"_______.____________ 524.710

Halfway, 1.7 miles southwest of, 325 feet west of milepost 79, in north 

bank of cut, on top of large rock; chiseled square marked " G.S.Q 

B.M. 487 "____________________________________ 487.159

Halfway, 2.9 miles southwest of, between county road and railroad, in 

center of south head wall of concrete box culvert under railroad; 

aluminum tablet stamped " 447 Md "_______ _______ _ 446. 641

Williamsport station, in front of; top of rail_________ ___ 455.0

Williamsport, 0.4 mile southwest of, north of railroad, about 300 feet 

west of milepost 81, on top of large rock in bank of cut; chiseled 

square marked " G.S.dB.M. 436"____________________ 436.00

Williamsport,. 1.3 miles southwest of, on south end of east abutment 

of back wall of Cumberland Valley R. R. bridge 82-1; chiseled 

square marked "G.S.DB.M. 382"__________________ 381.744

Accident, Flintstone, Frostburg, Grantsville, Hancock, Oakland, and Pawpaw

quadrangles.

ALLEGANY, GARRETT, AND WASHINGTON COUNTIES. \

The elevations in the following list were determined by primary 

leveling extended from various bench jnarks of the Coast and Geodetic Survey transcontinental line.
PRIMARY LEVELING. 43

The leveling in Frostburg and Flintstone quadrangles was done 

mostly in 1897 by Hargraves Wood; that in Grantsville, Oakland, 

Accident, and part of that in Pawpaw and Hancock quadrangles was 

done in 1898 by C. B. Bailey and Wood; and the remainder of the 

work in Pawpaw and Hancock quadrangles was done in 1899 by 

C. M. Smith.

HANCOCK QUADRANGLE.1 '

[Latitude 39° 30'-39° 45'; longitude 78°-78° 15'.] 

From Hancock west along Baltimore pike to Green Ridge.

Hancock, on coping stone at middle of north wall of Chesapeake & 

Ohio Canal aqueduct, about 600 feet east of bridge; Coast and Feet. 

Geodetic Survey bench mark stamped " 1878 F "__________ 420.714

Hancock, in front of bank, on stone doorsill; bronze tablet stamped

" 448 C " ___________ _________________________ 448. 023

Hancock, 5.15 miles west of, 0-25 mile east of Harveys, 100 feet west 

of road to Woodrnont, south of pike, in solid rock; bronze tablet 

stamped "946 C"___________________________ 945.453

From Lock 60 west to Clear Spring, thence north to Sylvan,1 Fa. (double targeted spur line).

Lock 50, Chesapeake & Ohio Canal, close to watch house, on west 

end of north side; cut in top stone__________ _ ____ 404.232

Lock 50, Chesapeake & Ohio Canal, northeast wing; aluminum tablet 

stamped "402 C"___-________________________ 402.235

Cherry Run, W. Va., 1.5 miles north and 0.75 mile west of, in south 

side of southwest corner of wing wall of Chesapeake & Ohio Canal 

viaduct over Licking Creek, 4 feet from west end of wall, about 2 

feet below coping, in second tier of masonry under coping; aluminum tablet stamped " Maryland 402 C "__.___________ 401.800'

PAWPAW QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 78° 15'-78° 30'.] 

From Fratt along highway to Little Orleans.

Green Ridge, south of pike, west of road to Little Orleans, in small 

ledge of rock at top of ridge; bronze tablet stamped " 1204 C "__ 1,203.897

Little Orleans, Chesapeake & Ohio Canal aqueduct over Fifteenmile 

Creek, in north end of east coping; bronze tablet stamped "459 

C "______________________________________ 459.262

Little Orleans, aqueduct Over Fifteenmile Creek; square cut in coping stone (C. & G. S. b. m. XIII)___________________ 459.685

FLINTSTONE QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 78? 30'-78° 45'.] 

From Cumberland along old national pike to Fratt.

Sixmile House, in northeast corner of foundation; copper bolt 

stamped " 881 C "___1_________________________ 881. 501

Flintstone, Dr. .Robinson's house, northwest corner of foundation; 

bronze tablet stamped "828 C"____________________ 828.403

1 For elevations in Hancock quadrangle in Pennsylvania see Bull. 515.
44 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Flintstone, 2.75 miles east of top of Polish Mountain, opposite tele- Feet, 

graph pole; stone stamped "1381"_________________ 1,381.95

Pratt, 0.25 mile east of former post office, 150 feet west of Robinett's 

old house, south of road, in ledge of rock; aluminum tablet stamped 

" 938 C " ________-o_________________________ 938.23

From Flintstone south along Oldtown road to Oldtown.

Flintstone, sixth crossing of Town Creek from, 2 feet above grade of 

creek; copper bolt in ledge west of road to Oldtown, about 0.06 mile 

northeast of L. T. Shryock's; stamped " 666 C "_.____'-____ 666.425

From Lock 67 west along Chesapeake & Ohio Canal to Cumberland.

Lock 67 of Chesapeake & Ohio Canal, on coping stone; Coast and 

Geodetic Survey bench mark XV____________________ 540.393

Oldtown, 15 feet east of west end of Lock 70, in coping stone of south 

wall; copper bolt stamped " 564 C "_________________ 564.208

. FROSTBTJBG QUADRANGLE.* 

[Latitude 39° 30'-39° 45'; longitude 78° 45'-79°.]

From Cumberland north and west along Cumberland & Pennsylvania R. R. via 

Mount Savage to Frostburg.

Cumberland, coping of feed lock of canal;. Coast and Geodetic Survey

bench mark stamped " I.B.M.,U.S.C.&G.S., 1878 "__________ 623.766 

Cumberland, northeast corner of courthouse, in top of stonework;

bronze tablet stamped " 688 C "~___________________ 687.797 

Mount Savage, 1,000 feet east of station, in southwest abutment of

high bridge over Sulphur Creek; copper bolt stamped " 1198 C "_ 1,198.048 

Frostburg, 50 feet east of tunnel on Cumberland & Pennsylvania.

R. R., in south side of rock cut; bronze tablet stamped "1929 C"__ 1,928.718

From Frostburg south and east along Cumberland & Pennsylvania R. R. to 

Cumberland.

Vale Summit, 250 feet west of station and 100 feet south of Georges 

Creek & Cumberland R. R., in large bowlder; copper bolt stamped 

" 1993 C "._________________________________ _ 1,993.113 

Clarysville; platform at station___________________ 1,637.5 

Park station (Casino) ; Georges Creek & Cumberland R. R. platform- 756. 8

GRANTSVILLE QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 79°-79° 15'.]

From Frostburg via Piney Grove, New Germany, and Crabtree to Bloomington.

Piney Grove, 0.5 mile east of, near east corner of large house north 

of pike, 200 feet west of Twomile Run; bronze tablet stamped 

" 2424 C "-___________________________________ 2, 424.125

New Germany, 0.1 mile east of, 100 feet east of Poplar Lick Run, 20 

feet south of road to Oakland at intersection of road to old mill, in 

ledge of rock; bronze tablet stamped "2472 C "_______1_ _ 2,471.783

Floyd, 0.12 mile east of railroad station (known as Frankville), 0.09 

mile west of milepost "214 to Baltimore," south of Baltimore & 

Ohio R. R., at east end of frame house, in large rock; bronze 

tablet stamped " 1693 "________________________ 1,693.121

1 For elevations in Frostburg quadrangle in Pennsylvania see Bull. 515.
PEIMAEY LEVELING. " 45

Ployd, 2.6 miles east of, 100 feet east of signal at station, south of 

Baltimore & Ohio R. R. bench mark in Laffey Rock; bronze tablet Feet, 

stamped "1380 C".________________ J___________ 1,380.441

From Piney Grove west through Grantsville to Keyser.

Grantsville, Farmers' Hotel, in southeast corner stone, opposite milepost marked " 14 mi. to Frostburg " and " 106 mi. to Wheeling "; 

aluminum tablet stamped " 2299 C "__________________ 2, 299.405

Keyser, northeast corner of stone foundation wall of former postoffice building; bronze tablet stamped "2879 C"___________ 2,880.165

ACCIDENT QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 79° 15'-79° 30'.] 

From New Germany southwest via Meadow Mountain Road to Thayerville.

Thayerville, 5.8 miles east of, north of Meadow Mountain road, near 

Meadow Mountain Run, in rock 500 feet northeast of old sawmill 

site; bronze tablet stamped "2573"_'-_______________ 2,573.506

From Thayerville north through McHenry, Hoyes, and Accident to Keyser.

Hoyes, southeast corner of foundation wall of Catholic Church; aluminum tablet stamped "2611 C"____________________ 2,611.818

Accident, in northeast corner of foundation of English Lutheran 

Church; aluminum tablet stamped " 2394 C "_____________ 2,395.001

From McHenry through Sang Run, Friendsville, and Shelbysport to Somerfield, 

Fa., thence southeast to Keyser.

Friendsville, southeast corner of First Avenue and Maple Street, in 

east foundation wall of building owned by L. E. Friend; aluminum 

tablet stamped "1501 C"_________________________ 1,501.040

Sang Run, in abutment of bridge over Youghiogheny River; bronze 

tablet stamped " 1989 C "_________________________ 1,988.409

Oakton, Pennsylvania-Maryland boundary; base of monument __ 2,362.37

OAKLAND QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 79° 15'-79° 30'.] 

From Oakland northeast to Thayerville.

Oakland, 1.25 miles west of, top of southwest abutment of Baltimore 

& Ohio R. R. bridge over Youghiogheny River; Coast and Geodetic 

Survey bench mark K _______ ______ ___ 2,375.518

Oakland, in courthouse on top of south meridian stone, copper bolt 

stamped " 2461 C "______-_.___________________ 2,460.369

Oakland, southwest corner stone of courthouse; aluminum tablet 

stamped "2473 C" __- _____ ____________ 2,472.387

From Oakland south to Redhouse, thence east to German, thence north through* 

Kearney and Deer Park to Mountain Lake.

Redhouse, southwest corner stone of school building; aluminum tablet 

stamped "2557 C"____________________________ 2,556.966

Redhouse, 2.6 miles east of, four corners on top of Backbone Mountain, 10 feet south of spring, on bowlder; chiseled square_____ 3,073.58

Gorman, highway bridge over Potomac River, at west end of north 

abutment; aluminum tablet stamped "2312 C"___________ 2,312.294
46 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Kearney, 2.2 miles northeast of, 900 feet west of Taskers Corners, 

600 feet east-southeast from barn in Jerry Tasker's upper field; Feet. 

aluminum tablet stamped "2720 C"__________________ 2,720.351

Deer Park, between two Baltimore & Ohio R. R. stations; 725 feet 

east of Deer Park Hotel station, top of southwest wing wall of 

abutment of stone culvert; aluminum tablet stamped "2447 C" 2,447.184

Mountain Lake, 3 miles east of Oakland 'railroad bridge over Little 

Youghiogheny River, on top of southwest corner of west abutment; 

point marked "BDM" (C. & G. S. b. m. XXII)___________ 2,404.324

At Thayerville.

Thayerville, 700 feet from, south of Meadow Mountain road, 150 feet 

east of Thayerville-Oakland road, in bowlder; bronze tablet 

stamped "2493 C"__________-___________________ 2,493.463
APPENDIX A.

ELEVATIONS ADJUSTED BY THE COAST AND GEODETIC 

SURVEY FROM PRECISE LEVELING.

Annapolis, Antietam, Baltimore, Betterton, Elk Garden, Elkton, Ellicott, Flintstone, Frostburg, Gunpowder, Hagerstown, Hancock, Havre de Grace, Ijamsville, Keyser, Laurel, Mount Airy, Oakland, Parkton, Pawpaw, Relay, Rockville, Seneca, Washington, and Williamsport quadrangles.

ALLEGANY, ANNE ABUNDEL, BALTIMORE, CABROLL, CECIL, FREDERICK, GARRETT, BARFORD, HOWARD, MONTGOMERY, PRINCE GEORGES, AND WASHINGTON COUNTIES.

The following descriptions and elevations are taken from reports 

of the Coast and Geodetic Survey and from lists furnished by the 

Baltimore & Ohio and Pennsylvania railroads; the data taken from 

the Coast and Geodetic Survey reports are republished by permisson 

of the superintendent of that bureau. The bench marks were established by the Coast and Geodetic Survey, by the Baltimore & Ohio 

E. E., and by the Pennsylvania E. E., from precise leveling, and 

their elevations are in agreement with the 1912 adjustment of the 

Coast and Geodetic Survey.

ANNAPOLIS aUADRANGLE.

[Latitude 38° 45-39° ; longitude 76° 15'-76° 30'.] 

At Annapolis.

Annapolis, Naval Academy, on front doorsill of house No. 5 Stribling Row, 7f inches from west doorframe, 2 inches from edge of Feet.

step, 14 inches from west end of step (C. & G. S. b. m. 5 S. R.)__ 9.409 

Annapolis, at northwest corner of house No. 1 Stribling Row, about

1 meter above ground; on projecting base (C. & G. S. b. m.

1 S. R.)___________________________________ 17.293 

Annapolis, 8 feet southwest of front of observatory building; on cen-

'ter of top of stone pier (C. & S. b. m. Obs.)______________ 23.012 

Annapolis, on northeast side of base of Herndon Monument, midway

of length, about 2 inches out from face of shaft, about 3 feet above

ground (G. & S. b. m. Hern.)_____________________ 29.196 

Annapolis, on southwest corner of fourth granite block supporting

iron fence around the governor's house, counting northeast from

southwest corner; cross cut in stone (C. & G. S. b. m. No. XIII)_ 41.378 

Annapolis, opposite Washington Street market, west doorsill of

church on West Street; cut in east corner (C. & G. S. b. m. No.

XII) _____________________________________ 42.854

47
48 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

ANTIETAM QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 77° 30'-77°'45'.] 

Near Keedysville.

Keedysville, 0.5 mile south of, on south abutment of Baltimore & 

Ohio R. R. bridge 26, on northwest corner of west capstone; cross Feet, 

cut (C. & G. S. b. m. B)_________________________^ 391. 564

From point near Washington Junction along Baltimore & Ohio R. R. to Harpers

Ferry.

Washington Junction, 0.9 mile east of, south side of tracks near milepost marked " Washington, 42 miles "; top of vertical rail section

(B. & O. R. R. b. m. 43)_________________________ 234.107 

Point of Rocks, south side of tracks, in foundation arch at east end

of Point of Rocks tunnel; copper bolt (B. & O. R. R. b. m. 44A)_ 233.156 

Catoctin, 1 mile southeast of, opposite rnilepost marked " Baltimore,

70 miles"; top of vertical rail section between tracks (B. & O.

R. R. b. m. 45)_______________________________ 238.257 

Catoctin, opposite milepost 71; top of vertical rail section between

tracks (B. & O. R. R. b. m. 46)_____________________ 239.068 

Catoctin, 1 mile northwest of, opposite milepost 72; top of vertical

rail section between tracks (B. & O. R. R. b. m. 47)______;_ 242.644 

Catoctin, 2 miles west of, 2 miles east of Brunswick, opposite inilepost 73; top of vertical rail section between tracks (B. & O. R. R.

b. m. 48)___________________________________ 245.721 

Brunswick, 1.5 miles from, opposite milepost 74, at east end of Brunswick yards; top of vertical rail section between tracks (B. & 0.

R. R. b. m. 49)_________________________________ 247.545 

Brunswick, 0.5 mile east of, in Brunswick yards, opposite milepost

75; top of vertical rail section between tracks (B. & O. R. R.

b. m. 50)_____________________-_______________ 247.713 

Brunswick, 0.5 mile west of, in southwest corner of culvert 39 G;

copper bolt (B. & O. R. R. b. m. 51)________^_________ 250.426 

Knoxville, 1 mile east of, opposite milepost 77; top of vertical rail

section between tracks (B. & 0. R. R. b. m. 52) 259.530 

Kuoxville, north side of tracks near milepost 78; top of vertical rail

section (B. & 0. R. R. b. m. 53)_____ ______._______ 258.044 

Weverton, 2 miles west of, west end of north end wall of culvert 39 I;

copper bolt (B. & O. R. R. b. m. 54)__________________ 258.087 

Weverton, 1.3 miles west of, 100 feet east of milepost 80, on north

side of tracks, in native rock; copper bolt (B. & O. R. R. b. m. 55) 263.323 

Weverton, 2.5 miles west of, near Harpers Ferry, 400 feet east of

Harpers Ferry tunnel, in box culvert 300 feet west of milepost 81;

copper bolt (B. & O. R. R. b. m. 56)_ ____ _ 280.268

From point near Doubs along Baltimore & Ohio R. R. to Washington Junction.

Doubs, near, 300 feet west of milepost 66, in west capstone of south 

coping of arch culvert; copper bolt (B. & O. R. R. b! m. 160)____ 290.387

Washington Junction, near, opposite milepost 67, between tracks; top 

of vertical rail section (B. & O. R. R. b. m. 161)_:_____ ____ 286.676

Washington Junction, 0.8 mile east of, opposite milepost 68, between 

tracks; top of vertical rail section (B. & O. R. R. b. m, 162), 257.545
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 49

Adamstown, near, at east end of first cut from Adamstown, on 

stone (granite) west of culvert; bottom of square hole (C. & G. S. Feet, 

of culvert; copper bolt (B. & O. R. R. b. m. 163)__'_______ 284.950

Doubs, 2 miles from, on Adamstown cut-off, 1,000 feet south of large 

arch culvert, in south end of west coping of small culvert; copper 

bolt (B. & 0. R. R. b. m. 164)_____________________ "270.636

Washington Junction, 1.5 miles from, on Adamstown cut-off, at north 

end of first large cut from Metropolitan branch, in north end of 

west coping of culvert; copper bolt (B. & O. R. R. b. m. 165)___ 252. 073

Washington Junction, on south side of tracks, 150 feet east of old 

signal tower; top of vertical rail section (B. & O. R. R. b. m. 44)__ 235.885

BALTIMORE QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 76° 30'-76° 45'.] 

In the vicinity of Baltimore.

West Baltimore, between tracks; top of vertical rail section (B. & O.

R. R. b. m. 36) ________________________________ 72.352

Baltimore, corner of West Ostend and Sharp streets, on Locust Point 

line of Baltimore & Ohio R. R., 500 feet east of railroad junction, 

in middle of south coping on eastern one of two small culverts; 

copper bolt (B. & O. R. R. b. m. 39)__________________ 9.134

Baltimore, corner of Howard Street and Fifth Avenue, in step at entrance to Fifth Regiment armory; copper bolt (city b. m. 1288)_ 127.060

Baltimore, at Mount Royal station, between third and fourth bents 

of train shed from Mount Royal entrance to tunnel, in coping of 

retaining wall; copper bolt (B. & O. R. R. b. m. 41)_.______ 70.876

Mount Royal station, Baltimore, 0.5 mile north of, in end of north 

abutment of bridge over Pennsylvania tracks; copper bolt (B. & 

O. R. R. b. m. 42)______________________________ 93.707

Baltimore, about 400 feet west of milepost 3, in south end of west 

abutment of small bridge; copper bolt (B. & O. R. R. b. m. 43)__ 149.370

Baltimore, Belt Line R. R. bridge over Jenkins Lane, in south bridge 

seat of east abutment; copper bolt (city b. m. 1240)__ _ _____ 142.395

Baltimore, on north side of Fort McHenry, east of quartermaster's 

wharf, at first angle in sea wall; cross cut on top of wall (" Tidal 

!")________________________________________ 4.442

Baltimore, on north side of Fort McHenry, on top of sea wall, in 

center of fourth capstone west from quartermaster's wharf; cross ' ". 

cut within a circle ("Tidal 2")___________________ 4.626

Kaltimore, at southeast corner of storehouse, south of quartermaster's 

wharf, highest point of knob of an old cannon set in ground with 

muzzle downward ("Tidal 3")__________'__________ 9.098

Baltimore, at Fort McHenry, at intersection of roads leading to fort 

entrance and quartermaster's wharf, on corner diagonally opposite 

the colonel's office; highest point of knob of an old cannon set in 

ground with muzzle downward ("Tidal 4") 27.536

Baltimore, at corner of Fort Avenue and Towson Street, at Fort 

Avenue entrance to Church of Our Lady of Good Counsel, in west 

end of top step; bottom of square hole (city 1181) __________ 30.623

Baltimore, on corner of Randall and Covington streets, northeast entrance to Riverside Park, in top of large granite gatepost on south 

side of path, close to corner of post; bottom of square hole (C. & 

G. S. b. m. L) ________________________________ 69.921 

45924° Bull. 563 14 4
50 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Baltimore, at corner of Sharp and Ostend streets, on north end of 

west one of- two small railroad culverts; in top of first coping 

Adamstown cut-off, not far from Doubs, in east end of north coping Feet, 

b. m. M)_________________________________ 8.993

Baltimore, 300 feet from south end of Belt Line cut, at approach to 

Camden station, in extreme south end of eastern offset to west retaining wall for elevated tracks; copper bolt (B. & 0. B. R. b. m. 

40)_____________________________________ 25.141

Mount Winans, 0.3 mile northeast of, on west abutment of bridge 

3A, set vertically in south capstone; copper bolt (B. & O. R. R. 

b. m. 38)___________________________________ 21.631

Mount Winans, near northeast end of station platform, between 

tracks; top of vertical rail section (B. & 0. R. R. b. m. 37)____ 36.765

From N-I tower along Pennsylvania R. R. to Arbutus.

N-I tower, 60 feet south of, in northeast coping of box culvert; copper bolt (P. R. R, b. m. 84)_______________ _________ .34. 72

Milepost 91, 2,700 feet south of, in southwest coping of arch; copper 

bolt (P. R. R. b. m. 85)_________________________ 44. 40

Milepost 92, 420 feet south of, Baltimore & Ohio R. R. crossing overhead bridge; on shelf (P. R. R. b. m. 86) _^______________ 58. 37

Philadelphia Turnpike (Baltimore), in northeast coping of iron pipe; 

copper bolt (P. R. R. b. m. 86a)_______^____________ 60.40

Patterson Park Avenue Bridge (Baltimore), in northwest bridge 

seat; copper bolt (P. R. R. b. m. 88)__________________ 85.32

Broadway Bridge (Baltimore), north end pedestal; no mark (P. R. R. 

b. m. 88a)__________________________________ 77.52

Union railroad tunnel (Baltimore), north end, west side; on shelf

(P. R. R. b. m. 89)_______________ ______________ 92. 87

Union railroad tunnel (Baltimore), south end, west side; on shelf

(P. R. R. b. m. 90)______________________________ 53.46

St. Paul Street Bridge (Baltimore), south end, east pier; copper 

bolt (P. R. R. b. m. 91) __________________________ 60. 22

Baltimore station, 1,924 feet south of, north end, east side Baltimore 

& Potomac R. R. tunnel; on shelf (P. R. R. b. m. 92)_ ______ 66.20

Pennsylvania Avenue station (Baltimore), in south step; copper bolt

(P. R. R, b. m. 93)_____________________________ 133.15

Lafayette, 2,273-feet north of, southwest wing of Baltimore & Potomac R. R. tunnel (Baltimore) ; on shelf (P. R. R. b. m. 94)____ 162.31.

Lafayette, 1,856 feet south of, southwest back wall, Franklin Street 

undergrade (Baltimore) ; square (P. R. R. b. m. 95 A)________ 143.45

Calverton, 1,961 feet south of, northwest back wall Gwynn's Falls 

Bridge; copper bolt (P. R. R. b. m. 96)________________ .140. 50

Frederick Road, east side retaining wall; shelf (P. R. R. b. m. 97)__ 157.32

Louden Park, west side of track, on cemetery wall; square (P. R. R. 

b. m. 98)___________________________________ 146.50

Louden Park, 1,944 feet south of, overhead bridge, on southwest pedestal; square (P. R. R. b. m. 98a)___________________ 154.26

From Baltimore station north along Pennsylvania R. R. to milepost 17.

Milepost 2, 930 feet north of, in southeast bridge seat; copper bolt

(P. R. R. b. m. 1)_____________________________ 116.58 

Woodberry, west center of arch; copper bolt (P. R. R. b. m. 2)___ 138.80 

Woodberry, east center of arch; copper bolt (P. R. R. b'. m. 3)___ 155.93
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 51

Milepost 4, 360 feet south of, south side of track, on city-line stone; Feet.

square (P. B. B. b. m. 4)_______________________ 174.73 

Melvale, 840 feet north of, northeast back wall; copper bolt (P.

B. B. b. m. 5) __________T __ _________________ 182.01

Cylburn, 500 feet north of, northwest abutment; shelf (P. B. B.

b. m. 6) ^ __ _________________ 199.53

Mount Washington, 60 feet south of, northwest seat of bridge No. 5;

copper bolt (P. E. B. b. m. 7)______________________ 198.69

Milepost 7, 870 feet north of, southwest seat of bridge No. 6; copper

bolt°(P- B. B. b. m. 8)__________________________ 230.69 

Baltimore water supply; surface of water in lake (P. B. B. determination) _____________ ____________________ 226. 0

Lake, 600 feet south of station, west side of track, in coping of arch;

copper bolt (P. B. B. b. m. 9)_____________________ 229.70 

Lake, opposite station, east side of track, in rock; copper bolt (P.

B. B. b. m. 9a)________________I__________.__ 250.73 

Buxton, 240 feet south of, northwest abutment of overhead road

bridge; shelf (P. R. R. b. m. 10)_____.____________ 269.70 

Sherwood, 300 feet south of, east center of arch; copper bolt (P.

B. B. b. m. 11) ______________________________ 284.15 

Milepost 9, 2,000 feet north of, northwest wing of bridge No. 7;

copper bolt (P. B. B. b. m. 12) i__________________ 291.20 

Lutherville, station step; copper bolt (P. B. B. b. m. 13)______ 328.73 

Milepost 11, 810 feet north of, west center of coping on box culvert;

copper bolt (P. B. B. b. m. 14)__ _ ____ _ 357.09 

Milepost 12, 2,000 feet north of, northeast wing of bridge No. 11;

copper bolt (P. B. B. b. m. 15)_____________________ 365.40 

Texas, station step; copper bolt (P. R. R. b. m. 16)___ ____ 329.54 

Cockeysville, 120 feet south of tower V, northeast coping of box

culvert; copper bolt (P. B. B. b. m. 17)_______________ 278.68 

Milepost 16, 240 feet south of, west center of arch; copper bolt

(P. R. R. b. m. 18)___________________________ 261.51

From Baltimore along Baltimore & Ohio R. R. to milepost marked "Baltimore

11 .miles."

Baltimore, at telegraph pole 92-8, in north end of bridge seat of 

east abutment of large iron bridge; copper bolt (B. & O. B. R. 

b. m. 44)_________________- ___-__ _ ____ 133.396

Baltimore, Gay Street station, south side of tracks, on bridge seat

of west abutment of bridge; copper bolt (B. & O. R. B. b. m. 45)__ 150.445

Baltimore, opposite telegraph pole 90-11, on bridge seat of west 

abutment of Duncans Lane Bridge, between tracks; copper bolt 

(B. & O. B. B. b. m. 46) ______ __ __ 108.518

Baltimore, Bay View station, 100 feet west of telegraph pole 89-20, 

on north end of bridge seat of east abutment of bridge over Philadelphia road; copper bolt-(B. & 0. B. R. b. m. 47) 72.669

Herring Run, at telegraph pole 88-13, in east abutment of bridge 

3b; copper bolt (B. & O. R. B. b. m. 48)____________ 30.280

Bosedale, opposite milepost B 9; vertical rail section between tracks

(B. & O. B. B. b. m. 49)_______;___ ___ 45.662

Milepost marked " Balto. 10 mi.," between tracks; top of vertical rail

section (B. & O. B. B. b. m. 50)___.._____ 58.430
52 SPIBIT LEVELING IN MARYLAND, 1896 TO 1911.

BETTERTON QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 76°-76° 15'.] 

From Belcamp along Baltimore & Ohio R. R. to point near'Stepney.

Belcamp, 0.5 mile east of Sewell, in southeast capstone.of bridge Feet.

22 A; copper bolt (B. & 0. R. R. b. in. 67)______________ 22. 998 

Belcamp, 0.2 mile east of, opposite milepost 28, between tracks; top

of vertical rail section (B. & 0. R. R. b. m. 68)___________ 36.444 

Stepney, near, at telegraph pole 67-27, in southeast capstone of

bridge 23 A; copper bolt (B. & O. R. R. b. m. 68 A)_________ 34. 434 

Stepney, near, at telegraph pole 66-22, in north end of west abutment

of bridge 25 A; copper bolt (B. & O. R. R. b. m. 69)________ IS. 365 

Stepney, 0.8 mile west of, opposite milepost 30, between tracks; top

of vertical rail section (B. & O. R. R. b. m. 70) ____________ 43. 968

From milepost 65 along Pennsylvania R. R. to Bush River.

Milepost 65, in east end of box culvert; copper bolt (P. R. R.

b. m. 62)__________________________________ 67.60 

Milepost 66, 810 feet south of, in northeast abutment of open bridge;

copper bolt (P. R. R. b. m. 63)_________________'____ 64.10 

Milepost 68, 660 feet north of, in northeast coping of box culvert;

copper bolt (P. R. R. b. m. 64) _____________________ 43.75 

Perrymansville, in step of station; copper bolt (P. R. R. b. in. 65)_ 44.12 

Milepost 70, 460 feet north of, in southeast coping of box culvert;

copper bolt (P. R. R. b. m. 66)______________________ 35.01 

Milepost 70, 4,200 feet south of, in northeast coping of box culvert;

copper bolt (P. R. R. b. m. 67) ___:__________________ 16. 89 

Bush River, wooden sill of tower (P. R. R. b. m. 68) .____________ 11. 93

Bush River, south end of bridge over, in northwest coping of box

culvert; copper bolt (P. R. R. b. m. 69)________________ 7.62

ELK GARDEN QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 79°-79° 15'.]

Near Swanton.

Swantou, near, on abutment of small Baltimore & Ohio R. R. bridge; 

cut, marked "BDM" (C. & G. S. b. m. XXV)___________ 2,274.619

From point near Bloomington along Baltimore & Ohio R. R. to point near

Altamont.

Bloomington, 0.2 mile east of, on bridge 79 over Potomac River, sec- , 

ond step from top, in north bridge abutment; copper bolt (B. & O. 

R. R. b. m. 29)________________________-______ 1,008.860

Bloomington, near, opposite milepost 209, between tracks; top of vertical rail section (B. & O. R. R. b. m. 30)__ __ __ 1,093.561

Black Bear, near, opposite milepost 210, between tracks; top of vertical rail section (B. & O. R. R. b. m. 31)_____ ______ 1,210.024

Black Bear, near, southwest side of southeast portal of Everetts 

tunnel; square cut in foundation (B. & O. R. R. b. m. 31 A)__ 1,279. 824

Black Bear, near, at telegraph pole 210-30, in foundation at northeast 

side of northwest portal of Everetts tunnel, copper bolt (B. & O. 

R. B, b. m. 32) ______________________________ 1,291.802
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 53

Bond station, 1.2 miles east of, 2.6 miles east of Frankville, 100 feet

east of signal station, south side of Baltimore & Ohio R. R.; bronze Feet.

tablet set in rock (U. S. G. S. b. m.)_________________ 1,380.440 

Bond station, 0.5 mile east of, opposite milepost 212, between tracks;

top of vertical rail section (B. & 0. R. R. b. m. 33)________ 1,445.351 

Crabtree, opposite milepost 213, between tracks; top of vertical rail

section (B. & 0. R. R. b. m. 34)_____________________ 1,564.118 

Frankville, near, 45 feet east of telegraph pole 213-39, south side of

track, in rock; copper bolt (B. & O. R. R. b. m. 35)________ 1,670.354 

Frankville, near, 30 feet northeast of telegraph pole 215-03, on

south side of track, in rock; copper bolt (B. & O. R. R. b. m. 36)__ 1,804.097 

Frankville, 1.5 miles southwest of, northwest of tracks, near milepost

216, 500 feet northeast of Hitchcock tunnel, in southwest end of

retaining wall; copper bolt (B. & O. R. R. b. m. 37)________ 1,910.921 

Frankville, 2.5 miles southwest of, opposite milepost 217, between

tracks; top of vertical rail section (B. & O. R. R. b. m. 38)___ 2,027.378 

Swanton, 1 mile northeast of, at telegraph pole 218-13$, in abutment

of bridge 80, north side of track; copper bolt (B. & 0. R, R.

b. m. 39) ____________________________________ 2,185.475

Swanton, 0.2 mile northeast of, at telegraph pole 219-5$, in northwest

end of bridge seat of northeast abutment of bridge 83; copper bolt

(B. & O. R. R. b. m. 40)____T ___________________ 2,271.557 

Swanton, 0.2 mile southwest of, at telegraph pole 219-21, on bridge 84,

in bridge seat of abutment toward Wheeling; copper bolt (B. & O.

R. R. b. m. 40 A) ______________________________ 2,297.299 

Swanton, 1.2 miles southwest of, at telegraph pole 220-19; in bridge

seat of abutment toward Wheeling; copper bolt (B. & 0. R. Ri

b. m. 41)________________________________ __ 2,381.425 

Swanton, 1.8 miles southwest of, opposite milepost 221, between

tracks; top of vertical rail section (B. & O. R. R. b. m. 42)___ 2,435.851

ELKTON QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 75° 45'-76°.]

From Delaware-Maryland boundary line along Pennsylvania B. B. to milepost 56.

Delaware-Maryland boundary stone; top of new stone marked " tangent 1849 " (P. R. R. b. m. 36 A)_____________________ 117.99

Iron Hill, 200 feet south of station, in northeast coping of box culvert; copper bolt (P. R. R. b. m. 37) ________ _ ___ 121.31

Milepost 43, 2,400 feet north of, in center of east coping of culvert; 

copper bolt (P. R. R. b.' m. 38)_____________________ 88.20

Milepost 43, 3,000 feet south of, in southeast coping of twin arch; 

copper bolt (P. R. R. b. m. 39)_______ - __ 57.34

Big Elk Creek, at southwest corner of bridge 54, in back wall; copper bolt (P. R. R. b. m. 40)_____________________ 33.60

Elkton, in doorsill of station; copper bolt (P. R. R. b. m. 41)._____ 30.00

Milepost 46, 500 feet south of, in southwest back wall of bridge 55; 

copper bolt (P. R. R. b. m. 42)_________________ _ 19.50

Milepost 47, 1,200 feet north of, northwest coping of culvert; copper 

bolt (P. R. R. b. m. 43)__ ________ _ _ 23.59

Milepost 48, 1,560 feet north of, in northeast wing of arch bridge; 

copper bolt (P. R. R. b. m. 44) 56.47
54 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Milepost 48, 900 feet south of, in northeast wing of 20-foot arch; cop- Feet, 

per bolt (P. R. R. b. m. 44a)__________'___________ 71.06

Bacon Hill, in northeast corner of coping of box culvert; copper bolt

(P. R. R. b. m. 45)___________________________ 76.15

Milepost 50, 1,020 feet south of, in southeast coping of arch; copper 

bolt (P. R. R. b. m. 46) _"_______________________ 71. 78

Northeast, 1,800 feet north of; copper bolt (P. R. R. b. m. 47)____ 48.80

Milepost 52, 180 feet north of, in southeast coping of arch; copper 

bolt (P. R. R. b. m. 48)_________________________ 28.58

Milepost 52,1,300 feet south of, in east pier of overhead bridge; copper bolt (P. R. R. b. m. 48a)______________________ 31.61

Milepost 53, 1,800 feet north of, 12-foot arch in northeast end of coping; copper bolt (P. R. R. b. m. 48b)__________________ 21.57

Milepost 53, 150 feet north of, northeast end of coping, Broad Creek 

arch; copper bolt (P. R. R. b. m. 49)__________________ 24.94

Milepost 53, 1,350 feet south of, box culvert in northeast end of coping ; copper bolt (P. R. R. b. m. 48a) __________________ 27.96

Charlestown, 390 feet south of, northwest coping of box culvert; copper bolt (P. R. R. b. m. 50)_______k_______________ 41.20

Milepost 55, 150 feet north of, northwest coping of box culvert; copper bolt (P. R. R. b. m. 51)_______________________ 57.11

From Foys Hill along Baltimore & Ohio It. R. to point near Newark, Del.

Milepost 45, opposite, between tracks; vertical rail section (B. & 0.

R. R. b. m. 85) ________________________________ 209.473 

Milepost 46, 10 feet east of, in outcropping rock; copper bolt (B. &

O. R. R. b. m. 86)_____________________________ 182.858 

Leslie, 0.5 mile west of, in north end of west abutment to bridge 42 A;

copper bolt (B. & O. R. R. b. m. 87)______________ ________ 164. 278

Milepost 48, opposite, between tracks; vertical rail section (B. & O.

R. R. b. m. 88)______________ _______________ 138. 779 

Eder, 1 mile east of Leslie, bridge 44 C over creek, in north end of

bridge seat of west abutment; copper bolt (B. & O. R. R. b. m. 89)_ 118.520 

Eder, 0.2 mile east of, mud wall of bridge 45 B, in north coping stone

of west abutment; copper bolt (B. & 0. R. R. b. m. 90)_______ 137.852

Eder, 0.8 mile east of, .open culvert, in north capstone of west abutment; copper bolt (B. & O. R. R. b. m. 90 A)____ _________ 138.536

Childs, 0.5 mile west of, in north end of west abutment of bridge

47 B; copper bolt (B. & 0. R. R. b. m. 91)__ __________ 136.394 

Childs, 0.2 mile east of, at Singerly, in north capstone of west abutment of bridge 47 F; copper bolt (B. & O. R. R. b. m. 92)_____ 136.447 

Baldwin, at Singerly Tower, in north capstone of west abutment of

bridge 49 A; copper bolt (B. & O. R. R. b. m. 93) _ ______ 163.735

Baldwin, 0.2 mile east of, at Barkesdale, bridge 50 A over Elk Creek,

in north capstone of west abutment of; copper bolt (B. & O. R. R.

b. m. 94)____ - 142.576 

Barkesdale, 0.4 mile east of, in north capstone of west abutment of

bridge 51 C; copper bolt (B. & O. R. R. b. m. 95)__________ 163.195 

Maryland-Delaware State line, 0.1 mile west of, in north capstone of

west abutment of bridge 52 A; copper bolt (B. & O. R. R. b. m. 96)_ 135,984
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 55

ELLICOTT QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 76° 45'-77°.] 

From Ilchester along Baltimore & Ohio R. R. to point near Hoods Mill.

Ilchester, in mud wall of west abutment of bridge out of Ilchester Feet.

tunnel, between tracks; copper bolt (B. & O. R. R. b. m.'104)____ 109.173 

Gray, opposite milepost 14 on old line, between tracks; top of vertical

rail section (B. & O. R. R. b. m. 105)_________________ 121.486 

Ellicott City 600 feet west of, south side of tracks, in native rock;

copper bolt (B. & O. R. R. b. m. 106)_________________ 144.376 

Oella, 400 feet east of, in center of north coping of arch culvert; copper bolt (B. & O. R. R. b. m. 106 A)__________________ 148.034 

Oella, 0.8 mile west of, on west side of tracks, 40 feet south of telegraph pole 16-10, in native rock; copper bolt (B. & O. R. R. b. m.

107)______________ _______________________ 168.438

Hollofleld, 1.5 miles south of, in southeast corner of west wing wall

of Union dam; copper bolt (B. & 0. R. R. b. m. 108) ________ 187. 532 

Hollofield, near, in east coping of culvert, 125 feet north of milepost 18, 6 feet from south end of coping; copper bolt (B. & O. R. R.

b. m. 109)___ _____________________:___:____ 192.624 

Hollofleld, culvert near target at tower, in north end of east coping;

copper bolt (B. & 0. R. R. b. m. 110)________________ 199.996 

Hollofleld, 0.8 anile northwest of, on south side of tracks, at telegraph

pole 19-34, in large rock; copper bolt (B. & 0. R. R. b. m. Ill)__ 215. 712 

Alberton; 0.2 mile west of, in Baltimore County, on west abutment of

bridge 17, between tracks; copper bolt (B. & O. R. R. b. m. 112)__ 222.352 

Alberton, near, at Dorseys Run, in center of southeast coping of arch

culvert; copper bolt (B. & O. R. R. b. m. 113)____________ 237. 053 

Alberton, near, 0.4 mile west of Dorseys Run, in center of north coping of arch culvert 21; copper bolt (B. & O. R. R. b. m. 114)___ 244. 826 

Davis, near, 1 mile-west of Dorseys Run, in center of north«coping

of arch culvert 22; copper bolt (B. & 0. R. R. b. m. 115)______ 249.406 

Davis, in center of west coping of arch culvert 23; copper bolt (B. &

O. R. R. b. m. 116)______________________________ 258.759 

Woodstock, 500 feet east of, in south end of small culvert; copper bolt

(B. & O. R. R. b. m. 117) ________________________ 271. 564 

Woodstock, near, at milepost 26, between tracks; top of vertical rail

section (B. & O. R. R. b. m. 118)_________,._________ 288.221 

Marriottsville, near, 2 -miles northwest of Woodstock, in retaining

wall on east side of tracks, 20 feet west of telegraph pole 26-28;

copper bolt (B. & O. R. R. b. m. 119) __ _ 291. 600 

Marriottsville, in north end of west mud wall of bridge 25; copper

bolt (B. & O. R. R. b. m. 120)!_____________:________ 292. 841 

Henryton, near, 300 feet east of Henryton tunnel, in bridge seat of

west abutment of bridge 26; between tracks; copper bolt (B. & O.

R. R. b. m. 121)_______v___ _1_______________________ 299.160

Gorsuch, near, 100 feet west of milepost 29, in north end of small box

culvert; copper bolt (B. & O. R. R. b. m. 122)________:____ 310. 944 

Gorsuch, in north end of west abutment of culvert 27; copper bolt

(B. & O. R. R. b. m. 123) _______________1__________ 323. 638 

Sykesville, near, opposite milepost 31, between tracks; top of vertical

rail section (B. & O. R, R. b. in. 124)_________________ 351.072
56 SPIRIT LEVELING IN MARYLAND, 1896 TO 19U.

Sykesville, 100 feet west of station, in center of south coping of Feet, 

culvert; copper bolt (B. & O. R. R. b. m. 125)_______1____ 375.944

Gaither, near, in seat of bridge at west end of Sykesville tunnel, between tracks; copper bolt (B. & O. R. R. b. m. 126)________ 408. 779

Gaither, 0.2 -mile southwest of, in north end of west abutment of 

bridge 28; copper bolt (B. & O. R. R. b. m. 127)__________ 419.235

FLINTSTONE QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 78° 30'-78° 45'.] 

From point near Little Orleans to point near Cumberland.

Little Orleans, 14 miles southwest of, at north end of canal tunnel, 

a short distance below level of towpath; square cut on stone 

foundation (C. & G. S. b. m. No. XIV) _________________ 532. 357

Oldtown, 5 miles east of, on coping stone of Chesapeake & Ohio Canal 

Lock 67; square cut (C. & G. S. b. m. No. XV)________'.______ 540.393

Cumberland, 9.2 miles east of, on coping stone of Lock 72 of Chesapeake & Ohio Canal; square cut (C. & G. S. b. m. No. XVI)____ 587.676

From point near North Branch along Baltimore & Ohio R. R. to point near

Evitts Creek.

North Branch, 0.5 mile southeast of, opposite milepost 172, between

tracks; top of vertical rail section (B. & O. R. R. b. m. 147)___ 598.307 

North Branch, bridge over north branch of Potomac River, in bridge

seat of west abutment, between tracks; copper bolt (B. & O.

R. R. b. m. 147 A) ______________________________ 602.514 

North Branch, 0.5 mile northwest of, opposite milepost 173, between

tracks; top of vertical rail section (B. & O. R. R. b. m. 148)___ 625.176 

North Branch, 1.5 miles northwest of, opposite milepost 174, between

tracks; top of vertical rail section (B. & O. R. R. b. m. 149)____ 637.056 

Evitts Creek, 1 mile southeast of, opposite milepost 175, between

tracks; top of vertical rail section (B. & O. R. R. b. m. 150)____ 629.429

FROSTBURG QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 786 45'-79°.] 

From Cumberland southwest 12 miles.

Cumberland, at western terminus of Chesapeake & Ohio Canal, on 

coping stone of feed lock; cut marked "I BDM U.S.C.S. 1878" 

(C. & G. S. b. m. I)__________________________._ 623. 766

Cumberland, 5.5 miles southwest of, on abutment of small drain on 

Baltimore & Ohio R. R.; cut marked "BOM" (C. & G. S. b. m. 

No. XVII) ___________________________________ 647. 393

Cumberland, 12 miles southwest of, at southwest angle of drain on 

Baltimore & Ohio R. R.; cut on foundation stone, marked " BQM " 

(C. & G. S. b. m. No. XVIII)__.___________.._'_______ 693.992

From point near Evitts Creek along Baltimore & Ohio R. R. to point 2 miles 

south of Cooks Mills.

Evitts Creek, 0.1 mile west of, opposite milepost 176, between tracks;

top of vertical rail section (B. & O. R. R. b. m. 151)_________ 638.435 

Cumberland, 1 mile east of, opposite milepost 177, between tracks;

top of vertical rail section (B. & O. R. R. b. m. 152)________. 648.129
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 57

Cumberland, opposite milepost 178, between tracks; top of vertical Feet.

rail section (B. & O. R. R. b. m. 153)_______________ 632.601 

Cumberland, Queen City Hotel, in front of railing to right of stairway

leading to relief department, in top of wall; copper bolt (B. & O.

R. R. b. m. 153 A)_____________________________ 639.762 

Cumberland, Grafton Line, at east end of viaduct bridge, on south

side of tracks; copper bolt (B. & O. R. R. b. m. 154)________ 644.338 

Cumberland, 1.5 miles west of, on south side of tracks, in foundation

of overhead foot bridge; copper bolt (B. & 0. R. R. b. m. 155)___ 653.430 

Cumberland, 2.5 miles west of, Pennsylvania R. R. overhead crossing

at the Narrows, in south end of east pier of north span; copper bolt

(B. & O. R. R. b. m. 156)_________________________ 656.199 

Mount Savage Junction, east abutment of first bridge east of, between

tracks; copper bolt (B. & O. R. R. b. m. 157)____________ 681.468 

Mount Savage Junction, east abutment of bridge 1 of Connellsville

Division, between tracks; copper bolt (B. & 0. R. R. b. m. 158)_ 710.440 

Ellerslie, in bridge seat of east abutment of bridge 2$, between

tracks; copper bolt (B. & O. R. R. b. m. 160 A)__________ 727.971

From point near Cumberland along Baltimore & Ohio B. R. to point near

Dawson.

Cumberland, near Green Street station, overhead bridge 180 C, in 

north end of extension of west abutment; copper bolt (B. & O. 

R. R. b. m. 1) _______________________________ 647.699

Robert station, near, 700 feet south of milepost 181, in west end of 

south wall of small culvert; copper bolt (B. & 0. R. R. b. m. 3)_ 632.911

Robert station, 0.1 mile south of, at telegraph pole 182-7, on small 

arch culvert, in north coping; copper bolt (B. & 0. R. R. b. m. 4)_ 637.475

Cedar Cliff, near, on culvert at telegraph pole 183-11, in north coping; copper bolt (B. & O. R. R. b. m. 5)_______________ 648.532

Cedar Cliff, near, at telegraph pole 184-6, stone culvert, in north 

end of west coping; square cut (B. & O. R. R. b. m. 6)_______ 647.706

Brady, near, at telegraph pole 184-22, north side of abutment to 

bridge 71; copper bolt (B. & 0. R. R. b. m. 6 A)__________ 647.277

Brady, 0.1 mile southwest of, at telegraph pole 185-10, in east end 

of north coping of culvert; copper bolt (B. & O. R. R. b. m. 7)__ 660.150

Brady, 1 mile southwest of, at telegraph pole 186-2, west of tracks, 

in native rock; copper bolt (B. & O. R. R. b. m. 7A)_______ 666.668

McKenzie station, 0.5 mile east of, at telegraph pole 186 37, on undergrade highway bridge crossing, in north abutment; copper bolt 

(B. & O. R. R. b. m. 8)__________________________ 680.759

Potomac station, on undergrade highway bridge, in north abutment; 

copper bolt (B. & O. R. R. b. m. 9)_______________1 _ 688.345

Pinto, near, 500 feet northeast of milepost 189, on arch culvert, in 

north coping; copper bolt (B. & O..R. R. b. m. 10)_________ 672.482

Lowndes, near, 150 feet southwest of milepost 190, on culvert, in 

north coping; copper bolt (B. & 0. R. R. b. m. !!)_,._______ 683.240

Cresap, near, at telegraph pole 190-23, on culvert ,in north abutment;

copper bolt (B. & O. R. R. b. m. 12) __________________ 698.825

Rawlings, 800 feet southwest of, on bridge 75, opposite telegraph pole 

191-23, in bridge seat of abutment toward Wheeling; copper bolt 

(B. & O. R. R. b. m. 13) ___________________________ 703. 575

Rawlings, near, opposite milepost 193, between tracks; top of vertical 

rail section (B. & O. R. R. b. m. 14)_________________ 718.319
58 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Black Oak, near, opposite milepost 194, between tracks; top of ver- Feet.

tical rail section (B. & O. R. R. b. m. 15) ______________ 724.961 

Black Oak, 200 feet southwest of, opposite milepost 195, between

tracks; top of vertical rail section (B. & O. R. R. b. m. 16)_____ 743.804 

Black Oak, 0.9 mile southwest of, at telegraph pole 195-30, Western

Maryland Ry. bridge, in northwest end of northeast abutment;

copper bolt (B. & 0. R. R. b. m. 17)__________________ 740.252

GUNPOWDER QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 76° 15'-76° 30'.] 

From milepost 74 along Pennsylvania R. R, to N-I tower.

Milepost 74, 1,530 feet north of, southeast coping of box culvert; copper bolt (P. R. R. b. m. 70)______________________ 21.84 

Milepost 74, 1,450 feet south of, southeast coping of cattle yard; -

copper bolt (P. R. R. b. m. 71)___________ ________ 24.34 

Milepost 75, 390 feet south of, east coping of box culvert; copper

bolt (P. R. R, b. m. 72)_________________________ 20.80 

Milepost 76, 75 feet north of, southeast coping of box culvert; copper

bolt (P. R. R. b. m. 73)____________________________ 30.16 

Magnolia, doorstep of water station; copper bolt (P. R. R. b. m. 74)_ 26. 78 

Milepost 78, 960 feet south of, northwest coping of box culvert;

copper bolt (P. R. R. b. m. 75)_________ :: 11.54 

Harewood Park, 780 feet north of, southeast coping of box culvert;

copper bolt (P. R. R. b. m. 76)________j.___________ 8.32

Milepost 81, 3,330 feet south of, northeast coping of box culvert;

copper bolt (P. R. R. b. m. 77) ..__________________ 24.60 

Milepost 82, 880 feet south of, northeast coping of arch; copper bolt

(P. R. R. b. m. 78)______________________________ 15.20 

Milepost 83, 400 feet south of, southwest coping of box culvert;

copper bolt (P. R. R. b. m. 79)________________1___ 30.96 

Middle River, station step; no mark (P. R. R. b. m. 79a)______ 32.23 

Milepost 86, 1,590 feet south of, northwest coping of iron pipe;, no

mark (P. R. R, b. m. 80)________________________ 39.04 

Stemmer's Run, 150 feet south of, northwest back wall of undergrade

road bridge; no mark (P. R. R. b. m. 81)______________ 22.92 

Milepost 88, southeast coping of arch; copper bolt (P. R. R. b. m. 82)_ 12. 80 

Milepost 89, 1,170 feet south of, northwest coping of box culvert;

copper bolt (P. R. R. b. m. 83)____'.__________ 19.40

From milepost 11 along Baltimore & Ohio R. R. to Belcamp.

Milepost 11, opposite, between tracks; vertical rail section (B. & O. 

R. R. b. m. 51) ____________________ ___ 48.793

Rossville, at telegraph pole 84-30, on east abutment of bridge 6 B, 

in south end of bridge seat; copper bolt (B. & O. R. R. b. m. 51 A)_ 37.322

Rossville, near, at telegraph pole 83-24, in bridge seat on east abutment of bridge 8 A, between westbound track and siding; copper 

bolt (B. & O. R. R. b. m. 52) ___________ __ 70. 380

Poplar, opposite milepost 13; vertical rail section between tracks (B. &

O. R. R. b. m. 53)____________________-________ 96.455

Poplar, near, opposite milepost 14, between tracks; vertical rail section (B. & O. R. R. b. m. 54) ________________________ 65. 759
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 59"

Cowenton, near, in north end of east abutment of bridge 10.A, at Feet.

telegraph pole 81-24; copper bolt (B. & 0. B. R. b. m. 54 A)____ 51.615 

Cowenton, 500 feet west of station, in southwest capstone of bridge

11 A; copper bolt (B. & O. R. R. b. m. 55)______________ ' 30. 688 

Cowenton, near, opposite milepost 16, between tracks; vertical rail

section (B. & O. R. R. b. m. 56)_____________________ 49.537 

Loreley, opposite milepost 17, between tracks; vertical rail section

(B. & O. R. R. b. m. 57)___________________________ 92. 300 

Loreley, 0.2 mile east of, in capstone at south end of west abutment

of bridge 13 B; copper bolt (B. & O. R. R. b. m. 58)________ 84.152 

Big Gunpowder bridge, at east end of, in east end of south coping;

copper bolt (B. & 0. R. R. b. m. 58 A)________________ 63.900 

Bradshaw, near milepost 19, in south end of west abutment of bridge

14 B; copper bolt (B. & 0. R. R. b. m. 59)______________ 54.638 

Joppa, 0.5 mile east of Bradshaw, north end of east abutment of

bridge 150; copper bolt (B. & O. R. R. b. m. 60)___________ 44.007 

Clayton Tower, opposite milepost 21, at Joppa, between tracks; ver1 tical rail section (B. & 0. R. R. b. m. 61)____________ 89.301 

Clayton, 0.2 mile west of, opposite milepost 22, between tracks; top

of vertical rail section (B. & 0. R. R. b. in. 62)___________ 102.201 

Milepost 23, opposite, between tracks; top of vertical rail section

(B. & O. R. R. b. m. 63)________________________ 60.573 

Van Bibber, 0.5 mile west of, in east end1 of south coping of east abutment of bridge 19 A; copper bolt (B. & O. R. R. b. m. 63 A)___ 40.418 

Milepost 24, east of Van Bibber, between tracks; top of vertical rail

section (B. & O. R. R. b. m. 64)___________________ 26.598 

Bush River, opposite milepost 25, between tracks; top of vertical rail 

. section (B. & 0. R. R. b. m. 65)_____1_______________ 40.222 

Sewell, 0.5 mile west of station, opposite milepost 26, between tracks;

top of vertical rail section (B. & O. R. R. b. m. 66)_______^__ 62.727

HAGERSTOWN QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 77° 30'-77° 45'.] 

At Hagerstown.

Hagerstown, at corner of Washington and Jonathan streets, on Jonathan Street side of courthouse; cut on water table (C. & G. S. 

b. m. A)_____________________________________ 552.033

HANCOCK QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 78°-78° 15'.] 

From Cherry Run to point near Hancock.

Cherry Run, nearly opposite station of Baltimore & Ohio R. R., on 

coping stone at upper end of " overflow " at " Big Pool," Chesapeake & Ohio Canal; square cut (C. & G. S. b. m. VII)_± ________ 405.474

Hancock, 8 miles east of Chesapeake & Ohio Canal aqueduct over 

Licking Creek, cut on coping stone, lettered " E.B.DM.JJ.S.C.S., 

1878" (C. & G. S. b. m. E)_________ _________ 404.623

Hancock, 1 mile east of, on coping stone at southeast end of Lock 

52, Chesapeake & Ohio Canal; square cut (C. & G. S. b. m. VIII). 418.224

Hancock, on middle of north side of Chesapeake & Ohio Canal 

aqueduct, on coping stone; cut lettered "F.B.QM.,U.S.C.S., 1878" 

(C. & G. S. b. m. F) _ 420.714
*60 SPIEIT LEVELING IN MARYLAND, 1896 TO 1911.

HAVRE DE GRACE QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 76°-76° 15'.]

From milepost 56 along Pennsylvania R. R. to milepost 64.

Milepost 56, 2,070 feet north of, in southeast coping of box culvert; Feet.

copper bolt (P. R. R. b. m. 52)_______________________ 74.97

Principio, doorsill of station; copper bolt (P. R. R. b. m. 53)___ 67.43 

Milepost 5.7, 1,800 feet south of, in stone monument north of cattle

guard; copper bolt (P. R. R. b. m. 54)_______________ 62.54 

Milepost 59, 2,070 feet south of, on northwest wing wall of overhead

road crossing; copper bolt (P. R! R. b. m. 55)____________ 36.40 

Perryville, northwest back wall of Susquehanna River bridge; copper bolt (P. R. R. b. m. 56)_______________________ 27.38 

Havre de Grace, southwest back wall of Susquehanna River bridge;

copper bolt (P. R. R. b. m. 57)____________ ,._______ 28.92 

Milepost 61, 90 feet north of, southeast back wall; copper bolt

(P. R. R. b. m. 58)_____________________________ 24.34 

Milepost 62, 240 feet south of,-in southeast wall of cattle guard;

copper bolt (P. R. R. b. m. 59)____________________ 44.82 

Oakington, 1,050 feet north of, in southwest parapet of arch; copper

bolt (P..R. R. b. m. 60) _________________________ 49.98 

Milepost 64, 180 feet north of, northeast coping of Swan Creek arch;

copper bolt (P. R. R. b, m. 61)_______________________ 53.13

From Perryville along Pennsylvania R. R. to point near Haines.

Frenchtown, at south end of Baltimore & Ohio R. R. pier, east of 

track; shelf (P. R. R. b. m. 1)______________________ 26.12

Milepost 3, 550 feet east of, 20 feet north of track, in rock; copper 

bolt (P. R; R. b. m. 2)__________________________ 20.93

Milepost 4, 1,980 feet east of, in northeast seat of bridge 27; copper 

bolt (P. R. R. b. m. 3)________________i_________ 5.63

Milepost 5, 570 feet east of, in southeast parapet of open box culvert; 

copper bolt (P. R. R. b. m. 4) ____________________ 8.47

Milepost 6, 870 feet west of, in southwest back wall of open box culvert; copper bolt (P. R. R. b. m. 5)___________________ 21.27

Milepost 7, 330 feet east of, in southeast back wall of open box culvert; copper bolt (P. R. R. b. m. 6)________________.__ 29.07

Milepost 8, 720 feet east of, in southwest back wall of open box culvert; copper bolt (P. R. R. b. m. 7)__________________ 31.83

Milepost 9, 270 feet west of, in southwest seat of first bridge west 

of Octoraro; copper bolt (P. R. R. b. m. 8)_____________ 35.63

Milepost 10, 360 feet east of, southeast coping of box culvert; copper 

bolt (P. R. R. b. m. 9)__________________________ 44.64

Milepost 11, 210 feet west of, on rock north of track.; shelf (P. R. R. 

b. m. 10)__^_______________________________ 58.80

Conowingo, southwest seat of county bridge; copper bolt (P. R. R. 

b. m. 11) __1__________._______________ ___ 69.11

Milepost 13,1,470 feet east of, on rock south of track; shelf (P. R. R. 

b. m. 12)__________________________________ 77.18

Milepost 13, 2,160 feet west of, on rock north of track; shelf (P. R. R. 

b. m. 13)___________________________________ 76.70

Milepost 15, 2,310 feet east of, in southwest parapet of arch; copper 

bolt (P. B. R. b. m. 14)_________________.__ .. 80.48
ELEVATION'S BY THE COAST AND GEODETIC SURVEY. 61

From point near Stepney along Baltimore & 'Ohio R. R. to point near Foys Hill.

Feet. 

Milepost 31, vertical rail section (B. & O. R. R. b. m. 71)__.______ 64.320

Aberdeen, south end of west abutment of bridge 27 A, at telegraph

pole 64-13; copper bolt (B. & 0. R. R. b. m. 72)__________ 71.510 

Aberdeen, 0.2 mile east of, in north end of east abutment of bridge

28 A; copper bolt (B. & O. R. R. b. m. 73)_______________ 82. 547 

Milepost 34, opposite, between tracks; vertical rail section (B. & 0.

R. R. b. m..74)___1___________________________ 65.857 

Osborne, west of station, in south end of west abutment of bridge

30 B; copper bolt (B. & 0. R. R. b. m. 75) ______________ 71.387 

Milepost 36, opposite, between tracks; vertical rail section (B. & O.

R. R. b. m. 76)_______________________________ 75.910 

Havre de Grace, 0.2 mile west of, opposite milepost 37, between

tracks; vertical rail section (B. & O. R. R. b. m. 77)________ 103.025 

Susquehanna River bridge, in south end of west abutment; copper

bolt (B. & 0. R. R. b. m. 78) _______________________ 94. 647 

Aiken, in south end of bridge seat on east abutment of Susquehanna

River bridge; copper bolt (B. & 0. R. R. b. m. 79)._________ 91.018 

Aiken, 0.5 mile east of, at milepost 40, between tracks; vertical rail

section (B. & 0. R. R. b. m. 80)____________________ 115.730 

Aiken, 1 mile east of, in north capstone of west abutment of bridge

36 A; copper bolt (B. & 0. R. R. b. m. 80 A)_____________ 129.046 

Jackson, 0.4 mile west of, at milepost 41, between tracks; vertical rail

section (B. & O. R. R. b. m. 81)____________________ 147.723 

Belvedere, 0.5 mile east of Jackson, in north end of west abutment of

bridge 37; copper bolt (B. & 0. R. R. b. m. 82)__________ 149.351 

Milepost 43, opposite, between tracks; vertical rail section (B. & 0.

R. R. b. m. 83)_____________________________ 179.349 

Foys Hill, opposite milepost 44, between tracks; vertical rail section

(B. & O. R. R. b. m. 84)__________________________ 217.372

IJAMSVILLE QUADRANGLE.

[Latitude S9 3 15'-39° 30'; longitude 77° 15'-77° 30'.] 

From point near Monrovia along Baltimore & Ohio R. R. to point near Doubs.

Monrovia, near, opposite milepost 49, between tracks; top of vertical 

rail section (B. & 0. R, R. b. m. 142) __________________ 473. 502

Monrovia, 300 feet west of, in east bridge seat, between tracks; copper bolt (B. & O. R. R. b. m. 143)____________________ 427.254

Monrovia, near, in north end of east seat of bridge, 40 feet east of 

milepost 51; copper bolt (B. & O. R. R. b. m. 144)_________ 391.024

Monrovia, near, in center of north coping of arch culvert, telegraph 

pole 51-23; copper bolt (B. & 0. R. R. b. m. 145)__________ 377.146

Ijamsville, near, north end of small culvert, 20 feet east of telegraph 

pole 52-19; copper bolt (B. & O. R. R. b. m. 146)__ _____ 360.117

Ijamsville, near, opposite milepost 53, between tracks; top of vertical 

rail section (B. & O. R. R. b. m. 147) ___ _ _ 351. 925

Ijamsville, 0.8 mile west of, between tracks, east seat of bridge near 

milepost 54; copper bolt (B. & O. R. R. b. m. 148) ^ 329.561

Ijamsville, near, between tracks, in west seat of new bridge at wast 

end of Ijamsville tunnel; copper bolt (B. & O. R. R. b. m. 149) . 315.046

Reels Mill, 1 mile east of, in west seat of bridge, between tracks; copper bolt (B. & 0. R. R. b. m. 150) __ 291.808
62 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Reels Mill, in foundation stone, southwest corner of coal chute; Feet.

copper bolt (B. & O. R. R. b. m. 151)__________________ 274. 062 

Frederick Junction, Monocacy River bridge, in north end of mud

wall of east abutment; copper bolt (B. & O. R. R. b. m. 152)___ 266.147 

Frederick Junction, 1 mile from, in south end of west coping of culvert; copper bolt (B. & O. R. R. b. m. 152 A) ______i_____ 284.950 

Frederick, 1.8 miles from, in outcropping limestone, east side of track, 

. 7 telegraph poles south of milepost marked " Frederick 2," at north

end of cut; copper bolt (B. & 0. R. R. b. m. 152 B)__________ 302. 577 

Frederick, 300 feet south of station, in native rock west of tracks;

copper bolt (B. & 0. R. R. b. m. 152 C)________________ 289.294 

Frederick Junction, 1 mile west of, 50 feet east of telegraph pole

58-34, in west end of south coping of culvert; copper bolt (B. & O.

R. R. b. m. 153)____________________________ 252.234 

Frederick Junction, 1.5 miles west of, in west end of north coping of

culvert 36; copper bolt (B. & O. R. R. b. m. 153 A)_________ 251.244 

Lime Kiln, near, opposite milepost 60, between tracks; top of vertical

rail section (B. & 0. R. R. b. m. 154)_________________ 271.897 

Lime Kiln, 0.5 mile west of, opposite milepost 61, between tracks; top

of vertical rail section (B. & O. R. R. b. m. 155)______:___ 283.637 

Buckeystown station, 0.3 mile east of, opposite milepost 62, between

tracks; top of vertical.rail section (B. & O. R. R. b. m. 156)___ 277.526 

Buckeystown station, in west end of north coping of culvert; copper

bolt (B. & O. R. R. b. m. 156 A)______________________ 282.160 

Buckeystown, near, opposite milepost 63, between tracks; top of vertical rail section (B. & O. R. R. b. m. 157) ___ 299.146 

Adamstown, 0.2 mile east of, opposite milepost 64, between tracks;

top of vertical rail section (B. & O. R. R. b. m. 158)_________ 310.328 

Doubs, 500 feet east of, in center of north coping of culvert 36^, 275

feet west of milepost 65; copper bolt (B. & O. R. R. b. m. 159)__ 285.522

From point near Tuscarora along Baltimore & Ohio E. B. to point near Washington Junction.

Tuscarora, 0.3 mile east of, in south end of east wall of box culvert, 

150 feet west of milepost marked " Washington 39 miles "; copper 

bolt (B. & O. R. R. b. m. 40 A)_____________________ 226.092

Tuscarora, 0.7 mile west of, on south side of tracks, near milepost 

40, on top of vertical rail section; cross (B. & 0. R. R.. b. m. 41) _ 226.746

Tuscarora, 1.7 miles west of, south side of tracks, near milepost 41; 

top of vertical rail section (B. & O. R. R. b. m. 42)_ 226.827

KEYSER QUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 78° 45'-79°.] 

.In the vicinity of Dawson.

Dawsou, 0.5 mile northeast of, at telegraph pole 196-24$, south side 

of track, in rock; copper bolt (B. & O. R. R. b. m. 18)- . 756.077

Dawson, near, west of tracks, 30 feet north of telegraph pole 197-30, 

in native rock; copper bolt (B. & O. R. R. b. m. 19) 772.837

Dawson, near, on arch 76, telegraph pole 198-11£, in north coping; 

copper bolt (B. & O. R. R. b. m. 20)___ __ _ 776.177

Dawson, near, on northwest abutment of bridge 77, opposite telegraph 

pole'199-17, near twenty-first bridge station, in bridge seat between 

tracks; copper bolt (B. & O. R. R. b. m. 21) 790.231
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 6S 

LAUREL QUADRANGLE.

[Latitude 39°-39 8 15'; longitude 76° 45'-77°.] - -. -,-, 

At Bowie.

Bowie, at Baltimore & Potomac R. R. station, on sill of danger sig- Feet. 

nal (C. & G. S. b. m. VII) _________________________ 148.595

From point near Branchville along Baltimore & Ohio B. R. to point near

Dorsey.

Branchville, 0.2 mile north of, at telegraph pole 29-24, in south 

end of east coping of box culvert; copper bolt (B. & O. R. R. 

b. m. 10) _ __ ___________ __________ 65.680

Branchville, 0.8 mile northeast of, opposite niilepost 29, between 

tracks; top of vertical rail section (B. & O. R. R. b. m. 11) ___ 77.546

Sunnyside, 0.5 mile north of, telegraph pole 27-24, in middle of east 

coping of culvert; copper bolt (B. & O. R. R. b. m. 12)______ 101.331

Beltsville, 0.6 mile north of, at telegraph pole 26-20, in west end of 

bridge seat, on north abutment of bridge; copper bolt (B. & 0. 

R. R. b. m. 13)______ _____ _____________ 125.437

Amnieudale, near, opposite milepost 26, between tracks; top of vertical rail section (B. & O. R. R. b. m. 14)_______________ 137. 839

Muirkirk, near, opposite telegraph pole 25-7, in middle of south 

coping of culvert; copper bolt (B. & O. R. R. b. m. 14 A)_____ 152. 634

Muirkirk, 0.1 mile southwest of, overhead bridge at Muirkirk furnace, in southwest end of foundation of southeast abutment; copper bolt (B. & O. R. R. b. m. 15)_____ __________ 157. 667

Contee, 0.4 mile southwest of, opposite milepost 24, between tracks;

. top of vertical rail section (B. & O. R. R. b. m. 16)_________ 179.271

Contee, 0.3 mile northeast of, at telegraph pole 23-11, in northwest end 

of bridge seat, on northeast abutment of bridge; copper bolt (B. & 

0. R. R. b. m. 17)_____________________________ 175.921

Oak Crest, 0.2 mile northeast of, at telegraph pole 22-24, in center 

of southeast coping of culvert; copper bolt (B. & 0. R. R. 

b. m. 17 A)____________________ _____ ________ 169.683

Laurel, .0.5 mile southwest of, at telegraph pole 21-30, in southeast 

end of northeast abutment of bridge 7; copper bolt (B. & 0. R. R. 

b. m. 18)________ - ___ __ ___ 155.117

Laurel, near, in Anne Arundel County, on northeast abutment of 

bridge 6, in southeast end of bridge seat; copper bolt (B. & 0. R. R. 

b. m. 19)___________________T ______________ 14&215

Savage station, near, about on Anne Arundel-Howard county line, 

opposite milepost 20, between tracks; top of vertical rail section 

(B. & O. R. R. b. m. 20)___-_____________________ 172.896

Savage station, 0.1 mile east of, in south end of east abutment of 

bridge 5, telegraph pole 19-8; copper bolt (B. & 0. R. R. b. m. 21) __ 154. 302

Annapolis Junction, 0.5 mile northeast of, northwest abutment of 

overhead bridge, in northeast end of foundation; copper bolt (B. & 

O. R. R. b. m. 22) __________________-__-_______ 174. 540

Bridewell, 0.5 mile south of, opposite milepost 17, between tracks; 

top of vertical rail section (B. & O. R. R. b. m. 23)________ 170.354

Bridewell, 0.1 mile east of, arch in front of State building, in west 

end of north coping; copper bolt (B. & O. R. R. b. m. 24)_____ 168. 671
64 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Jessups, hear, opposite milepost 15, between tracks; top of vertical Feet, 

rail section (B. & 0. R. R. b. m. 25)__________________ 158.318

Montevideo, near, opposite milepost 14, between tracks; top of vertical rail section (B. & O. R. R. b. m. 26)___________1___ 137.135

From Arundel along Pennsylvania B. B. to Bowie.

Arundel, 850 feet north of, south seat of bridge 12; copper bolt

(P. R. R. b. m. 117)___________________________ 75.15

Arundel, 5,320 feet south of, southeast box culvert; copper bolt

(P. R. R. b. m. 118)___________________________ 124.23

Bowie, 2,910 feet north of, east side of track; stone marker (P. R. R. 

b. m. 119)___________________________________ 165.67

Bowie, at tower, east side of track; stone marker (P. R. R. b. m. 120) __ 148. 60

MOUNT AIRY OUADRANGLE.

[Latitude 39° 15'-39° 30'; longitude 77°-77° 15'.]

From point near Hoods Mill along Baltimore & Ohio B. B. to point near'

Monrovia.

Hoods Mill, near, 100 feet west of milepost 34, in south end of small

culvert; copper bolt (B. & O. R. R. b. m. 128)___________ 428.096 

Hoods Mill, at dam, on south side of tracks, in large rock; copper bolt

(B. & 0. R. R. b. m. 129)_________________-________ 441.836 

Morgan, near, opposite milepost 36, between tracks; top of vertical

rail sectipn (B. & O. R. R. b. m. 130)_________________ 460.741 

Woodbine, near, opposite milepost 37, between tracks; top of vertical

rail section (B. & O. R. R. b. m. 131)_________________ 485.970 

Woodbine, 300 feet west of,, in northeast corner of small culvert;

copper bolt (B. & O. R. R. b. m. 131A)_________________ 495.871 

Woodbine, near, opposite milepost 38, between tracks; top of vertical

rail section (B. & O. R. R. b. m. 132)__________________ 513.733 

Watersville, near, in bridge seat of east abutment of bridge, at east

end of Mount Airy cut-off, between tracks; copper bolt (B. & O.

R. R. b. m. 133)______________________________ 550.512 

Watersville, 0.2 miles west of, on Mount Airy cut-off, in north coping of culvert; copper bolt (B. & O. R. R. b. m. 134)________ 593. 519 

Watersville, 1 mile west of, at east end of cut on Mount Airy cut-off,

in west end of south coping of culvert; copper bolt (B. & O. R. R.

b. m. 135)__________________________________ 622.060 

Watersville, at east end of Mount Airy tunnel, between tracks; top

of vertical rail section (B. & O. 'R. R. b. m. 136) ___________ 703. 202 

Watersville, near, in Frederick County, at west end of Mount Airy

tunnel, between tracks; top of vertical rail section (B. & O. R. R.

b. m. 136 A)__________________________-________ 679.926 

Plane No. 4, near, 0.2 mile east of Mount Airy Junction, 0.5 mile west

of Mount Airy tunnel, in east end of south coping of culvert; copper bolt (B. & 0. R. R. b. m. 137)____________________ 657.334 

Plane No. 4, 250 feet east of, in east end of north coping of arch;

copper bolt (B. & O. R. R. b. m. 138) __________________ 581. 314 

Bartholows, 0.3 mile east of, on south side of tracks, 500 feet west

of milepost 47, in east end of small culvert; copper bolt (B. & O.

R. R. b. m. 139)_____________________________ 550.150
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 65

'Bartholows, 300 feet west of, in west end of north coping of arch Feet.

road crossing; copper bolt (B. & 0. R. R. b. m. 140)____._____ 528.403 

Monrovia, near, in north end of small culvert, 400 feet west of cross- 

' ing of old and new tracks; copper bolt (B. & 0. R. R. b. m. 141)__ 489.494

OAKLAND QUADRANGLE.

[Latitude 39° lo'-39° 30'; longitude 79° 15'-79° 30'.] 

From point near Deer Park west to Buttons Switch.

Deer Park, a short distance north of, on top stone of cattle guard; ' 

cut marked " B.DM." (C. & G. S. b. m. XXIII)__________ 2,455.959

Oakland Park, 3 miles east of, on west abutment of small bridge 

(Baltimore & Ohio R. R.) ; cut marked " B.DM." (C. & G. S. b. m. 

XXII)________________________ ______-_____ 2,404.324

Oakland, 1.2 miles west of, southwest corner of Baltimore & Ohio 

R. R. bridge over Youghiogheny River; cut on .abutment lettered 

"K. B.DM., TJ..S. C. S., 1878" (C. & G. S. b. m. K))_____.___ 2,375.518

Buttons Switch station, Baltimore & Ohio bridge over small run;

square cut on abutment (C. & G. S. b. m. XXIV)______ _^__^__ 2,434.343

Fronl point near Altamont west along Baltimore &'.0hio R. R. to point near

Hut ton. °

Altamont, 1.2 miles northeast of, opposite milepost 222, between 

tracks; top of vertical rail section (B. & 0. R. R. b. m. .43)_^__ 2,541.970

Altamont, 0.2 mile east of, opposite milepost 223, about at summit,

between tracks; top of vertical rail sections (B. & O. R. R. b. m. 44)_ 2, 627. 936

Altamont, 0.8 mile west of, opposite milepost 224, between tracks; 

top of vertical rail section (B. & O: R. R. b. m. 45)__ _- . 2,578.503

Deer Park, 1 mile east of, opposite milepost 225, between tracks; top 

of vertical rail section (B. & O. R. R. b. m. 46)__j.______^__. 2,526.474

Deer Park, 200 feet east of station, opposite milepost 226, between .

tracks; top of vertical rail section (B. & O. R. R. b. m..47)_______ 2,-473. 496

Deer Park, 500 feet northeast of station for Deer Park Hotel, at. telegraph pole 226-14^; in southwest corner of culvert; copper bolt . 

(B. & O. R. R. b. m. 47 A) _____________._,._______^_r_-_ 2, 449. 099

Deer Park, near, 0.6 mile southwest of station for Deer Park Hotel, 

opposite milepost 227, between tracks? top of vertical rail section 

(B. & O. R. R. b. m. 48) ____________________________ 2, 436. 892

Mounta'in Lake Park, 1.2 miles east of, opposite milepost 228, between tracks; top of vertical rail section (B. & O. R. R. b..m. 49)_ ,2, 422. 405

Mountain Lake Park, 0.2 mile east of, at telegraph pole 229-6^, on 

west abutment of bridge 86, in west end of north wing; copper bolt 

(B. & O. R. R. b. m. 50)__________________________ ,2,404.683

Mountain Lake Park, 0.3 mile west of, at telegraph pole 229-29, : in. 

north abutment of bridge; copper bolt (B. & O. R. R. b. m.;51)___ 2,396.994

Oakland, 1 mile south of, opposite milepost 231, between tracks; top 

of vertical rail section (B. & 0. R. R. b. m. 52)_________ __; 2,383.138

Oakland, 300 feet southeast of station, on bridge, in abutment toward 

Wheeling, 7 feet below grade; copper bolt (B. & O. R. R. b..m: 53).- .2,370. 924

Oakland, 0.5 mile northwest of, opposite telegraph pole 232-22, .on, : , 

northeast abutment of highway bridge, in northeast end of .southr. . : , 

east wing; copper bolt (B. & O. R. R. b. m. 53 A)______i_i'__r_ 2, 377..119 

45924° Bull. 563 14 5
66 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

Oakland, 1.5 miles northwest of, on bridge 88 over Youghiogheny

River, in bridge seat of abutment toward Wheeling; copper bolt Feet.

(B. & 0. R. R. b. in. 54)__________________________ 2,377.707 

Oakland, 2 miles northwest of, opposite milepost 234, between tracks;

top of vertical rail section (B. & O. R. R. b. m.' 55)________ 2,402.333 

Oakland, 3 miles west of, opposite milepost 235, between tracks; top

of vertical rail section (B. & O. R. R. b. m. 56)__________ 2,442.714 

Skipnish, near, opposite milepost 236, between tracks; top of vertical

rail section (B. & 0. R. R. b. m. 57)__________^_________ 2,454.449

Hutton, 0.5 mile southeast of, opposite milepost 237, between tracks;

top of vertical rail section (B. & O. R. R. b. m. 58)_________ 2,482.274 

Hutton, 0.5 mile northwest of, opposite milepost 238, between tracks;

top of vertical rail section (B. & O. R. R. b. m. 59)________ 2,445.563

PARKTON QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 76° 30'-76° 45'.] 

From milepost 17 along Pennsylvania R. R. to milepost 37.

Milepost 17, 990 feet south of, northeast wing of bridge 18; copper 

bolt (P. R. R. b. m. 19)____________________________ 254. 59

Phoenix, northwest wing of bridge 20; copper bolt (P. R. R. b. m. 20)_ 244.15

Milepost 19, 1,800 feet south of, southeast coping of bridge 23; copper 

bolt (P. R. R. b. m. 21) ____________________________ 254.85

Sparks, west center of arch; copper bolt (P. R. R. b. m. 22)_____ 253.93

Milepost 20, 1,230 feet north of, east center of arch; copper bolt

(P. R. R. b. m. 23)____________________________ 256.62

Milepost 23, 3,420 feet north of, southwest back wall of bridge 27; copper bolt (P. R. R. b. m. 24)______J__^_______________ 29003

Corbett, 1,650 feet north of, southeast back wall of bridge 28; copper 

bolt (P. R. R. b. m. 25) ^________________________ 309. 58

Milepost 23, 2,400 feet north of, east center of box culvert; copper

bolt (P. R. R. b. m. 26)___________________________ 317.52

Blue Mount, 700 feet south of, southeast seat of bridge 30; copper 

bolt (P. R. R. b. m. 27)_________________________ 313.28

Milepost 26, 900 feet south of, southwest wing of bridge 35; copper

bolt (P. R. R. b. m. 28)____________________________ 332.18 

Milepost 27, 270 feet south of, southeast back wall; copper bolt (P.

R. R. b. m. 29)________i______________________ 353.77 

Milepost 28, 300 feet north of, 60 feet east of track, in rock; copper

bolt (P. R. R. b. m. 30)________i_______________ 393.70 

Parkton, 300 feet south of station, 175 feet east of track, in rock; copper "bolt (P. R. R. b. m. 31)_______________________ 419.49 

Bentley, 1,300 feet south of, northwest wing of bridge 53; copper bolt

(P. R. R. b. m. 33) ________________________'-___ 501. 82 

Milepost 32, 2,370 feet north of, northwest wing of bridge 57; copper

bolt (P. R. R. b. m. 34)________________________ 552.58 

Milepost 34, 960 feet south of, southwest seat of bridge 60; copper

bolt (P. R. R. b. m. 35) ____________-__ __ ____ 647. 69 

Milepost 35, 600. feet south of, east center of arch bridge 62; copper

bolt (P. R. R. b. m. 36)___________________________ 726.30 

Milepost 35, 2,760 feet north of, northwest arch of bridge 65; copper

bolt (P. R. R. b. m. 37)______________ _-________ 779.99
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 67

PAWPAW QUADRANGLE.

[Latitude 39° 30'-39° 45'; longitude 78° 15'-78° 30'.] 

From point near Hancock to point near Little Orleans.

Hancock, 6 miles west of, on copiug stone of Lock 53, Chesapeake & Feet. 

Ohio Canal; square cut (C. & G. S. b. m. IX)_____________ 427.073

Hancock, 10 miles west of, cut on coping stone of Chesapeake & Ohio 

Canal Lock 55, at Dam 6; lettered " G.B.DM., U.S.C.S., 1878 " (C. & 

G. S. b. m. G)_________________________________ 443.810

Hancock, 12.2 miles west of, on coping stone at north end of Chesa-

 peake & Ohio Canal Lock 56; square cut (C. & G. S. .b. m. X)___ 451. 616

Little Orleans, 4.8 miles east of, at south side and east end of Chesapeake & Ohio Canal Lock 57, on top of wing wall; square cut 

(C. & G. S. b. m. XI)____________________________ 458.134

Little Orleans aqueduct of Chesapeake & Ohio Canal over Fifteenmile Creek, on coping stone; square cut (C. & G. S. b. m. XII)__ 459. 685

Little Orleans, 3 miles west of, on coping of Chesapeake & Ohio Canal 

Lock 58; square cut (C. & G. S. b. m. XIII)_____________ 467.601

Little Orleans, 12 miles southwest of, 2 miles east of canal tunnel, on 

coping of Lock 61; cut lettered "H.B.DM., U.S.C.S., 1878" (C. & 

G. S. b. m. H)_________________________________ 492.308

RELAY QUADRANGLE.

[Latitude 39°-39° 15'; longitude 76° 30'-76° 45'.] 

From point near Dorsey along Baltimore & Ohio R. R. to West Baltimore.

Dorsey, 0.2 mile east of, 400 feet southwest of milepost 13, in southwest end of northwest coping of culvert; copper bolt (B. & O. R. R. 

b. m. 27)___________________________________ ' 176.778

Harwood, 0.3 mile east of, about 450 feet east of milepost 12, in middle of south coping of arch culvert; copper bolt (B. & O. R. R. 

b. m. 28)____________________________________ 83.215

Hanover, 0.5 mile east of, opposite milepost 11, between tracks; top of

vertical rail section (B. & O. R. R. b. m. 29)____________ 80.853

Elk Ridge, 0.2 mile southeast of, east side of tracks, 30 feet south of 

milepost 10, in coping of retaining wall; copper bolt (B. & O. R. R. 

b. m. 30)____________________-______________ 71.105

Relay, at east end of viaduct bridge on south side of tracks, in center 

of top of stone post; copper bolt (B. & O. R. R. b. m. 31)_____ 71. 715

St. Denis, 0.1 mile east of, in middle of south coping of arch culvert; 

copper bolt (B. & O. R. R. b. m. 31 A)_..__________________ 67.691

St. Denis, 0.8 mile east of, at east end of north abutment of overhead 

public-road bridge, in foundation on first course of stone; copper 

bolt (B. & O. R. R. b. m. 32)_______________________ 73.896

Halethorpe, 0.1 mile east of, near telegraph pole 5-20, in south end 

of west wall of culvert; copper bolt (B. & O. R. R. b. m. 33)___ 67. 800

Winans, 780 feet south of, in east end of Baltimore & Ohio R. R. 

bridge; shelf cut (P. R. R. b. m. 101) ___! __________ 36.767

Lansdowne, opposite milepost 4, on top of vertical rail section; cross

(B. & O. R. R. b. m. 34)_______________ _________ 68.931

Lansdowne, 0.5 mile north of, south end of west abutment of overhead bridge, in large coping stone of retaining wall; copper bolt 

(B. & 0. R. R. b. m. 35) __ _ _ 79.112
68 SPIRIT LEVELING IN MARYLAND, 1896 TO 1911.

From Relay along Baltimore & Ohio R. R. to Ilchester.

Relay, 0.5 mile east of, in northwest corner of culvert; copper bolt Feet.

(B. & 0. R. R. b. rn. 100) ___________________________ 66.632 

Vineyard, in east end of south coping of bridge 10; copper bolt (B. &

0. R. R. b. m. 101) ____________________________ 70.972 

Vineyard, near, in east end of west offset of south coping of bridge;

copper bolt (B. & O. R. R. b. m. 102)___________________ 77.056 

Orange Grove, 0.2 mile northwest of, .on north side of tracks, 250

feet northwest of milepost 12, near large white-poplar. tree, in

native rock; copper bolt (B. & 0. R. R. b. m. 103)_________ 94.988

From Arbutus along Pennsylvania R. R. to point near Arundel.

Arbutus, 2,050 feet north of, west side of track; stone marker (P. R. R.

b. m. 99)___________________________________ 114.41 

Halethorpe, 429 feet north of, west coping of box culvert; copper bolt

(P. R. R. b. m. 100)______________________________ 58.82 

Winans, 780 feet south of, on east Baltimore & Ohio R. R. bridge;

shelf (P. R. R. b. m. 101) _________________________ 36. 767 

Patapsco, 2,407 feet north of, southeast coping; copper bolt (P. R. R.

b. m. 102)_________________________________ 30.19 

Patapsco, southeast back wall of undergrade bridge; square (P. R. R.

b. m. 103a)_____________________________.___ 33.95 

Patapsco, 5,066 feet south of, in west coping of box culvert; copper 

. bolt (P. R. R. b. m. 104)__________________._____- 44.88 

Stony Run, 1,390 feet south of, in west coping of box culvert; copper

bolt (P. R. R. b. m. 105)__________________________ 68.79 

Harnian, 4,210 feet north of, in east center coping of arch; copper bolt

(P. R R. b. m. 106)_______________________________ 84. 24 

Harman.-east side of track; stone marker (P. R. R. b. m. 107)_ 126.66 

Severn, east side of track; stone marker (P. R. R. b. m, 10S)__ __ 167.00 

Severn, 3,640 feet south .of, in northeast coping of box culvert; copper

bolt (P. R. R. b. m. 109)____________________ ____ 136.62 

Severn, 5,650 feet south of, on bridge 9, in southwest coping of arch;

copper bolt (P. R. R, b. m. 110)__________________ 118.72 

Odenton, 2,250 feet north of, in southeast coping of box culvert; copper bolt (P. R. R. b. m. Ill)___'_________:__________ 137.12 

Odenton, 150 feet north of, in southwest end parapet of box culvert;

copper bolt (P. R. R. b. m. 112)_____________________ 148.93 

Odenton, 3,500 feet south of, on east side of track; stone marker

(P. R. R. b. m. 113)___________________ ____-____ 166.61 

Patuxent, 4,070 feet north of, in northeast bridge seat of bridge 10;

copper bolt (P. R. R. b. m. 114)__________..__________ 106.05 

Patuxent, 1,700 feet north of, in southwest bridge seat of bridge 11;

copper bolt (P. R. R. b. m. 115)___________________._ 82.51 

Patuxent, 3,540 feet south of, on east side of track, at Patuxent tower;

stone marker (P. R. R. b. m. 116) ___________________ 121.42

ROCKVILLE, QUADRANGLE.

[Latitude 39°-39° 15'; longitude 77°-77 ff 15'.] 

From point near Linden along Baltimore & Ohio R. R. to Waring.

Linden, 0.3 mile east of, opposite milepost marked " Washington 9 

miles," between tracks; top of vertical rail section (B. & O. R. R. 

b. m. 10)___________________________________ 320.165
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 69

Capitol View, 0.4 mile east of, opposite milepost 10, between tracks; Feet.

top of vertical rail section (B. & 0. R. R. b. m. 11)_________ 309.663 

Kensington, opposite milepost 11, between tracks; top of vertical rail

section (B. & 0. R. R. b. m. 12)____________________ 300.703 

Garrett Park, 0.4 mile east of, opposite milepost 12, between tracks;

top of vertical-rail section (B. & 0. R. R. b. m. 13) _________ 285. 524 

Windham, 0.3 mile east of, opposite milepost 13, between tracks; top

of vertical rail section (B. & 0. R. R. b. m. 14)_J__________ 318.216 

Halpine, 0.7 mile east of, opposite milepost 14, between tracks; top of

vertical rail section (B. & O. R. R. b. m. 15)____________ 372.713 

Halpine, 0.3 mile west of, opposite milepost 15, between tracks; top

of vertical rail section (B. & 0. R. R. b. m. 16)___________ 393.836 

Rockville, 0.5 mile east of, opposite milepost 16, between tracks; top

of vertical rail section (B. & O. R. R. b. m. 17)___________ 421.685 

Rockville, 0.5 mile west of, opposite milepost 17, between tracks; top

of vertical rail section (B. & 0. R. R. b. m. 18) ____________ 442.277 

Westmore, 0.3 mile west of, opposite milepost 18, between tracks; top

of vertical rail section (B. & 0. R. R. b. m. 19)__________ 457.265 

Derwood, opposite milepost 19, between tracks; top of vertical rail

section (B. & O. R. R. b. m. 20)____________________ 475.563 

Washington Grove, 0.7 mile east of, opposite milepost 20, between

tracks; top of vertical rail section (B. & O, R. R: b. m. 21)_____ 497.156 

Gaithersburg, 0.6 mile east of, opposite milepost 21, between tracks;

top of vertical rail section (B. & O. R. R. b. m. 22)_________ 518.824 

Ward, 0.1 mile east of, on south side of tracks, near milepost 22, top

of vertical rail section (B. & 0. R. R. b. m. 23)___________ 490.668 

Ward, 0.9 mile west of, south side of track near milepost 23; top of

vertical rail section (B. & 0. R. R. b. m. 24)_____ _______ 446.261 

Clopper, 0.2 mile east of, south side of track near milepost 24; top of

vertical rail section-(B. & 0. R. R. b. m. 25) ____ __ __ 404.372

At Great Falls.

Great Falls, 1.65 meters from west gate of Lock 20, Chesapeake & 

Ohio Canal, on capstone of south wall, 0.2 meter from extreme 

north and 0.45 meter from, extreme east edge; bottom of square 

cut (C. & G. S. b. m. F)__ ___ _ - 166.592

SENECA QUADRANGLE.

[Latitude 39°-39° 15'; longitude 77° 15'-77° 30'.] 

From Waring along Baltimore & Ohio R. R. to point near Tuscarora.

Waring, south side of track near milepost marked " Washington 25

miles"; top of vertical rail section (B. & O. R. R. b. m. 26)____ 364.414 

Germantown, 0.5 mile east of, south side of tracks near milepost 26;

top of vertical rail section (B. & O. R. R. b. m. 27)_________ 399.898 

Germantown, 0.5 mile west of, on south side of tracks near milepost

27; top of vertical rail section (B. & O. R. R. b. m. 28)________ 442.132 

Darby, 1.5 miles west of, on south side of tracks near milepost 28;

top of vertical rail section (B. & O. R. R. .b. m. 29) ________ 422. 575 

Boyd, 0.1 mile east of, on south side of.tracks, near milepost 29;

top of vertical rail section (B. & O. R. R. b. m. 30) __________ 417. 066 

Buck Lodge, 0.5 mile east of, south side of tracks, near milepost 30;

top of vertical rail section (B. & O. R. R. b. m. 31)_________ 431.852
70 SPIEIT LEVELING IN MARYLAND, 1896 TO 1911.

Buck Lodge, 0.5 mile west of, south side of tracks, near milepost 31; Feet.

top of vertical rail section (B. & O. R. R. b. m. 32)^______:_ 441. 610 

Barnesville, 1.1 miles east of, on south side of tracks, near milepost

.32; top of vertical rail section (B. & O. R. R. b. m.' 33) _______ 494. 929 

Barnesville, 0.1 mile east of, south side of tracks, near milepost 33;

top of vertical rail section (B."& O. R. R. b. m. 34)________ 508.940 

Barnesville, 0.9 mile west of, south side of tracks, near milepost 34;

top of vertical rail section (B. & O. R. R. b. m. 35)___^_____ 452.827 

Dickerson, 0.7 mile east of, south side of tracks, near milepost 35;

top of vertical rail section (B. & O. R. R. b. m. 36)________ 396.949 

Dickerson, 0.3 mile west of, south side of tracks, near milepost 36;

top of vertical rail section (B. & O. R. R. b. m. 37)____:____ 344.318 

Dickerson, 1.3 miles west of, 225 feet west of milepost 37, in bridge

seat of culvert, on south end.of east side; copper bolt (B. & O.

R. R. b. m. 38)________________________________ 284.448 

Tuscarora, 1.3 miles east of, south side of tracks, near milepost 38;

top of vertical rail section (B. & O. R. R. b. m. 39)__________ 254. 848

From Seneca to Whites Ferry.

Seneca, on southeast side of capstone on southwest end of Aqueduct 

Bridge, 0.165 meter from iron guard rail, 0.397 meter from extreme 

edge of capstone, and 0.06 meter from end of lower wooden beam of 

guard rail crossing the bridge; bottom of square cut (C. & G. S. 

b. in. E)___________..__.._______________________ 198.392

Whites Ferry, about 20 meters east of bridge crossing Chesapeake & 

Ohio Canal, on south bank, on capstone of culvert under canal, 0.178 

meter from extreme south edge of capstone; square cut (C. & G. S. 

b. m. V)____________________________________ 207.247

WASHINGTON QUADRANGLE.

[Latitude 38° 45'-39° ; longitude 76° 45'-77° 15'.]

From point near Silver Spring to point near Woodside.

Silver Spring, 0.5 mile east of, opposite milepost marked " Washington 7 miles," between tracks; top of vertical rail section (B. & O. 

R. R. b. m. 8)____ .327.571

Woodside, 0.3 -mile east of, opposite milepost 8, between tracks; top of 

vertical rail section (B. & O. R. R. b. m. 9)______________ 323.370

From Rives along Baltimore & Ohio R. R. to point naar Branchville.

Rives, 100 feet southwest of milepost 35, southeast side of tracks, in 

northeast end of coping of foundation for overhead bridge; copper 

bolt (B. & O. R. R. b. m. 5) _________________________ 59. 734

Hyattsville, 0.5 mile southwest of, in west corner of southeast capstone, northeast abutment, bridge 34 A; copper bolt (B. & O. R. R. 

b. m. 6)_____________________________________ ' 34.704

Alexandria Junction, opposite milepost 33, between tracks; top of vertical rail section (B. & O. R. R. b. m. 7) ________________ 49.209

Riverdale, 600 feet north of, in west end of north wall of culvert;

copper bolt (B. & O. R. R. b. m. 7 A) ____ .51. 982

Riverdale, near, in north end of east coping of small culvert, about 

400 feet north of milepost 32; copper bolt (B. & O. R. R. b. m. 8)_ 53. 206

College Park, 0.5 mile north of, in west end of north abutment of 

bridge; copper bolt (B. & O. R. R. b. m. 9)__________i___ 52.959
ELEVATIONS BY THE COAST AND GEODETIC SURVEY. 71

Berwyn, 0.2 mile south of, in west end of bridge seat, north abutment 

of small bridge at telegraph pole 30-17; copper bolt (B. & O. R. R. peet. 

b. m. 9 A)__________________________________ 53.037

From Bowie along Pennsylvania R. R. to District line.

.Bowie, 1,820 feet south of, west side of track; stone marker (P. R. R.

b. m. 121a)_________________________________ 142.13

Springfield, east side of track; stone marker (P. R. R. b. m. 122).._ 167.47 

Glendale, east side of track; stone marker (P. R. R. b. m. 123)___ 150.45 

Seabrook, 2,820 feet north of, east side of track; stone marker

(P. R. R. b. m. 124)______________________________ 150.44 

Seabrook, 3,110 feet south of, northeast coping of bridge 14; copper

bolt (P. R. R. b. m. 125)__________________________ 135.66

Lanham, 1,960 feet south of, west coping of culvert; copper bolt

(P. R. R. b. m. 126) ______________________________ 129.79 

Ardwick, 1,430 feet south of, northwest wing of bridge 15; copper bolt

(P. R. R. b. m. 127)_______^____'________________ 67.42 

Landover, 170 feet north of, top step of northeast wing of bridge 17;

copper bolt (P. R. R. b. m. 128)_____________________ 56.84 

Magruder Avenue, bridge over Magruder Branch, east abutment,

bottom step of north wing; copper bolt (P. R. R. b. m. 129)____ 43.40 

Magruder, 1,865 feet south of, northeast wing of bridge 18, at level

of bridge seat; copper bolt (P. R. R. b. m. 130)_____ __ 21.19 

Magruder, 4,980 feet south of (Maryland and District of Columbia

boundary line), west side of track; stone monument (P. R. R.

b. m. 130a)______________ ________________ 48.30

WILLIAMSPORT QUADRANGLE.

 [Latitude 39° 30'-39° 45'; longitude 77° 45'-78°.] 

From Williamsport along Chesapeake & Ohio Canal to Cherry Run.

Williamspo'rt, on west side of aqueduct of Chesapeake & Ohio Canal 

over Conococheague River, on top surface of stone; square cavity 

marked " BBQM.; U.S.C.S., 1878"____________________ 357.750

Williamsport, 7 miles west of; cut on coping stone of Dam No. 5, 

Potomac River, lettered " CBDM., U.S.C.S., 1878 "_________ 371. 630

Williamsport, 7.8 miles west of, on top layer of stone of second lock 

above Dam No. 5, in Chesapeake & Ohio Canal; square cut lettered 

"No.VIBDM., U.S.C.S., 1878"_______________________ 371.358

Williamsport, 9.2 miles west of, on top layer of stone at west end 

of sixth lock above Dam No. 5; square cut lettered " DBQM., 

U.S.C.S., 1878" _______..________________________ 404.241
APPENDIX B.

Secondary elevations from records arid topographic maps of the 

United States Geological Survey, including altitudes of well-known 

summits and other useful elevations, are given below. These elevations are approximate only and should not be used for accurate 

work.

Locality.

Backbone Mountain, the highest point in

Maryland.

Black Hill. ...................................

Fairview Mountain, triangulation station. ....

Federalsburg. ................................

Forest Hill. ............................:.....

Grays Hill, triangulation station. .............

High Knob. ..................................

High Rock. ..................................

Hunting Hill .................................

Marsh Hill ...................................

Mount Pleasant. ..............................

Quadrangle.

Oakland ..............

Elkton. ...............

.....do................

Elkton. ...............

Williamsport.........

Belair., . ..............

Ellicott...............

Elkton. ................

Ellicott...............

Hauerstown

Tanevtown .>.. ........'.

County.

 Garrett. ..............

Cecil.. ................

.....do....:...........

Cecil..................

Washington...........

flnfrptf

Cecil..................

ton.

...do..................

Elevation.

Feet. 

160

3,340

1,564

899 900

1 879

Q11

2

0QQ

194

07

917

3,162

4**

449

Q(K

642

i 7nn

29

544

1 fiA4

3 ftH4

268

fiQ^

58

1 *31

1 BOO

3,000

4R1

688

1 (KQ

1,772

CQC

QW

^ n?^

1,468

3

A01

165

470

163

810

816

72
SECONDARY ELEVATIONS. 73

Locality.

Pine Rock. .................'..................

Ridge Hill. ...................................

Ridgely......................................

Sampson Rock, triangulation station .........

Shriver Ridge ................................

Sideling Hill, triangulation station ...........

Truesdall Heights ............................

West Elkridge. ...............................

Wolf Rock.......... ........................

Quadrangle.

Grantsville. ...........

Oakland..............

Belair.................

Ellicott...............

Ijamsville.............

Denton ...............

Hancock..............

Frostburg. ............

.....do................

 Flintstone.... ........

Pawpaw ..............

Flintstone............

OfvV]ap<i

Relay.................

County.

Garrett...............

Frederick

...do.......:.........

/~J.Ql»f»rtf*-

Elevation.

Feet. 

2,604

1,506

2,767

182

1,125 vin

400

2,145

585

1,260

67

769

99 H

1,388

2 cwn

2.942

1KQ

1,522

1,635

707

831

1,281

392

2,809

659

 JO

2.135

228

2,866

2,796

INDEX.

A. 

Aberdeen................................. 17,18,61

Accident..................................

Accident quadrangle......................

Adamstown................................. 49,62

Aiken.'....................................

Alberton.................:...............

Alexandria Junction......................

Allegany County............................ 42,47

Allibonc..................................

Altamont. ................................

American Corners........................

Ammendale................................. 23,63

Annapolis................ -................... 22,47

Annapolis Junction.......................... 23, 63

Annapolis quadrangle....................... 22,47

Anne Arundel County....................... 20,47

Antietam quadrangle.................. 32-34,48-49

Arbutus..................................

Ardwick.................................

Arundel..................................

Ashton...................................

Avondalc......................'..........

B.

Bacon Hill...............................

Bailey, C. B., work of....................

Bailey, George, work of...................... 10,17

Baldwin, D. H., work of..................

Baldwin..................................

Baltimore................................ 49,50,51

Baltimore & Ohio R. R..... 17,20,21,23,29,30,32, 

33,35,44,45,46,47,48,50,52,53,55,56, 

57,58,59,61,62,63,64, 65,67,68,69,70

Baltimore County........................ 17,20,47

Baltimore quadrangle.................... 20,49-51

Barclay..................................

Barclay quadrangle.......................

Barkesdale '...............................

Barnesville...............................

Bartholows.................................. 64,65

Bayview.................................

Belair....................................

Belair quadrangle........................... 18-19

Belcamp.................................

Beltsville.................................

Belvedere................................

Bench marks, description of..............

forms of, plate showing...............

Benflcld..................................

Benson Center............................

Bentley..................................... 19,66

Benton Corners...........................

Berlin....................................

Berwyn..................................... 71

Betterton quadrangle........................ 12,52

ge.

45

4j

61

70

19

65

iO

,63

',47

i,47

),47

M9

68

71

64

24

35

64

43

),17

8

64

J,51 

,32, 

,56,

^70

1,47

f»-51

11

11

54

70

4,65

17

TO

8-19-

52

63

61

fi

11

9; 66

11

Ifi

71

252

Bissell............... '............

Black Oak... .....................

Bond............................

Boyd........ ....................

Brady. ..........................

Brink...........................

Burrsville.'. . ....................

C.

Cardiff.........................

Cedar Cliff......................

Chesapeake ....................

Page. 

........... 41

............ 39

............ 52

............ 58

............ 11

............ 52

............ 66

............ 38,39

............ 33,34

............ 53

............ 20

...... 23,63,64,71

............ 69

............ 19

............ 59

............ 57

............ 63

............ 63

............ 31

............ 14

............ 33

............ 36

............ 33,48

............ 69,70

............ 62

............ 20

14

............ 37

............ 13

............ 23

............ 17

............ 50

............ 12

............ 25

............ 16

69

............ 18

............ 10

......... 20,35,47

............ 37,48

............ 20

............ 39

............ 10

......... 10,17,47

............. 10-11

............. 57

............ 31

............ 12

............ 26

............ 17,54

............. 30

............. 59

............. 17

75
76. INDEX.

Chesapeake & Ohio Canal................... 9,

24,31,32,34,41,43, 44,56,59,67,69,71

Chesapeake Beach R. R..................... 25

Chesapeake City............................. 10

Chesapeake Junction........................ 25

Chestertown quadrangle..................... 12

Chesterville................................. 11

Chewsville.................................. 39

Childs....................................... 54

Choptank quadrangle....................... 12

Clarksburg...............:................. 32

Clarksville.................................. 23,30

Clarysville....... ......................... 44

Classification, standard of................... 5-6

Clayton...................................... 59

Clear Spring...:...........:................. 41

Clifton Beach............................... 28,29

Clinton...................................... 25

Clopper..................................... 69

Clunet, C. A., work of....................... 10

Coast and Geodetic Survey, elevations by... 47-71

Coates, W. G., work of...................... 20

Cockeysville................................. 20,51

Colbourne................................... .16

College Park................................ 70

Columbia................................... 23

Conaways................................... 22

Concord..................................... 13

Conowingo.................................. 18,60

Cdntee...................................... 63

Cooke, C. E., work of........................ 24

Cooperation by the State..................... 5

Corbett...................................... 66

Cowenton................................... 59

Crabster..................................... 36

Crabtree..................................... 53

Crapoquadrangle........................... 14

Cresap...................................... 57

Crisfield..................................... 16

Crisfield quadrangle......................... 16

Cross Roads................................. 28

Crumpton................................... 11

Cumberland.............................. 44,56,57

Cumberland & Pennsylvania R. R........... 44

Cumberland Valley R. R.................... 38,41

Cylburn..................................... 51

D.

Daingerfield, J. S. B., work of............... 17

Damascus................................... 29

Darby....................................... 69

Darlington.................................. 18

Darnestown .................................. 32

Datum, inland............................... 7

Davis....................................... 55

Dawson................... ......:.:........ 62

Dawsonville................................. 32

Day......................................... 29

Deal Island quadrangle...................... 16

Deer Park. ................................^. 46,65

Deerfield.................................... 37

Delmar...................................... 15

Denton...................................... 13

Denton quadrangle.......................... 13

Derwood.................................... 69

Detour...................................... 37

Page. 

Dickerson................................... 70

Dorchester County.......................... 10

Dorsey...................................... 23,67

Doubs.................................... 48,49,62

Dover quadrangle,.......................... 10-11

Drawbridge................................. 15

Drum Point quadrangle..................... 14

Dryrun...................................... 41

E.

Earleville.. 

Easton....

Eden......

Eder......

EdesviUe.. 

Edgemont.

............................ 10

............................ 12

............................. is

............................ 54

............................ 12

............................ 39

Edwards Ferry. .............................. 32

Elioak. ...................................... 23

Elk Garden quadrangle. ..................... 52-^53

Elk Ridge. .................................. 67

Elkton.. .................................... 17,53

Elkton quadrangle ....................... 17,53-54

Ellerslie. . ................................... 57

Ellerton ..................................... 40

Ellicott City. ................................ 21, 55

Ellicott quadrangle. ...................... 21, 55-56

Elvaton . .................................... 22

Emmitsburg. .......................'........ 38

Emmitsburg quadrangle. .................... 36-38

Evitts Creek.... . ............................ 56

F.

Fail-land.. .................................... 23

Fairview (Elkton quadrangle). .............. 17

Fairview (Williamsport quadrangle). ....... 41

Farmer, R. A., work of! ..................... 29

Federal Hill.. ............................... 19

Federalsburg. . .............................. 13

Flintstone. .................................. 43, 44

Flintstone quadrangle. ................... 43-44, 56

Florence .^... .............................. 29

Floyd. ...................................... 44,45

Forestville. ................................. 25

Fowblesburg.. .............................. 21

Foys Hill. .. T. .............................. 61

Franklin City. .............................. 16

Frankville...... ............................ 53

Frederick ................................... 30, 62

Frederick County ..................... 29, 32, 35, 47

Frederick Junction. ........................... 30,62

Fredericktown. ............................. 11

Frenchtown. ................................ 60

Friendly. ................................... 25

Friendsville. ................................ 45

Frostburg. .................................. 44

Frostburg quadrangle.................... 44,56-^58

Funkstown. ................................ 40

Gaither . . ................................... 56

Gaithersburg. . .............................. 31, 69

Gait. ....................................... 36

Gamber. .. . ................................ 21

Gapland. ................................... 33

Garrett County. ............................ 42, 47

Garrett Park. ............................... 31, 69

Georges Creek & Cumberland R. R ......... 44
INDEX. 77

Germantown. ..................

Glenburnie. ....................

Glendale .......................

Golden Hill.. ..................

Goldsboro. *....................

Goldsborough, Charles, work of . 

 German. . ...........'...........

Gorsuch. .......................

Goshen. ........................

Graceham. .....................

Grantsvllle .....................

Grantsville quadrangle .........

32, 69 

22 

71 

14 

11 

10 

45 

55 

31 

37 

45

44-45 

55 

28

31, 69 

10 

29 

43 

13

13

35,42

14

58-59

Grayton. ....................................

Great Falls. ............................... 9,

Green, B. J., work of ........................

Green, T. A., work of .......................

Green Ridge. ...............................

Greensboro. .................................

Griffin. ......................................

Grimes......................................

Gum Swamp. ...............................

Gunpowder quadrangle. ....................

H. 

Hagerstown..................... 38,39,40,41,42,59

Hagerstown quadrangle. ................. 38-41, 59

Halethorpe. ................................. 67, 68

Halfway..................................... 42

Halpine. ..................... ; .............. 69

. Hampstead. ................................. 21

Hancock. ................................. 43, 59, 67

Hancock quadrangle. . ...................... 43, 59

Hanesville.... ............................... 12

Hanover. ................................... 67

Harewood Park. ............................ 58

Harford County. ............................ 17, 47

Harman.. . .................................. 68

Harpers Ferry............................... 32,34

Harrington quadrangle ...................... 13

Harris, J. M., work of ....................... 32, 35

Harwood. ................................... 67

Havre do Grace...................'. ...... 18,60,61

Havre de Grace quadrangle. . .......... 17-18, GO-61

Henryton. .................................. 55

Herring Run. ............................... 51

High Point.. ................................ 19

Highfield .................................... 37

Hillsboro................. ................... 13

Hilltop...................................... 28

Hobbs.... . .................................. 13

Hodges, J. W., work of................... 10,17,20

Hollingsworth.. ............................. 11

Hollofleld................................... 21,55

Hoods Mill.. ................................ 64

Howard County. ........... I ................ 29, 47

Hoyes. ...................................... 45

Hurlock quadrangle. ......................... 13-14

Hutchins, Ralph," work of.. ................. 20,29

Hutton ...................................... 66

Buttons Switch ............................. 65

Hyattstown. . ............................... 30

Hyattsville.. . .....'.......................... 70

I. 

Ijamsville ................................... 61

Ijamsville quadrangle .................... 30, 61-62

Ilchester.... ................................. 55

Indian Head quadrangle..................... 26-28

Ingleside...........'......................... 11

Iron Hill.................................... 53

Ironsides.................................... 28

J.

Jackson.. 

Jefferson. 

Jessups... 

Jones..... 

Joppa..-.

K.

Kearney.................................... 46

Keedysville................................... 34,48

Kensington.................................. 69

Kent County................................ 10

Keyser...................................... 45

Keyser quadrangle.......................... 62

Kingsdale................................... 36

Klej Grange................................. 16

Knoxville................................... 48

L.

Lafayette. 

Lake......

Lakesville,. 

Lanham.... 

Lansdowne. 

Lauraville..

........................... 50

........................... 51

........................... 14

........................... 71

........................... 67

........................... 20

Laurel ...................................... 23, 63

Laurel quadrangle. ................... 23-24, 63-64

Layhill. ..................................... 31

Laytonsville ................................ 31

Lefeaver, J. H., work of ..................... 10

Le Gore..................................... 36

Leonard, T. D., work of ..................... 10

Leslie....................................... 17,54

Lewistown. ................................. 37

Libertytown ................................ 29, 30

Lime Kiln .................................. 62

Linchester. ................................. 13

Linden. ..................................... 68

Linkwood. .................................. 13

Linwood .................................... 35

Lisbon. ..................................... 29

Little Orleans ...:........................ 43, 56, 67

Locust Grove. ............................... 11, 12

Longridge ................................... 15

Longwoods. .. 

Loreley . . ....

Louden Park. 

Lowndes. ....

Loys. . .......

Lutherville. ..

12

59

50

57

37

51

M.

McAleer. .................................... 36

McConchie .................................. 28, 29

McGinnes. .................................. 11

McKenzie ................................... 57

McNair, A. F., work of ...................... 26

Macton. ..................................... 19

Magnolia. ................................... 58

Magruder ................................... 71

Manchester. ................................. 21

Maps, topographic, list of .................... 7-8

Mardela Springs. ............................ 15

Marion ...................................... 16
78 INDEX.

Page. 

Marriottsville............................... 55

Marshall Hall............................... 26

Martinsburg quadrangle..................... 34-35

Marydel..................................... 11

Maryland Electric Ry....................... 22

Mason and Dixon. .......................... 41

Massey...................................... 11

Maugansville................................ 38,41

Medford.................. .................... 35

Melvale...................................... 51

Middle River..........:...................... 58

Middleburg................................. 36

Middlepoint................................. 40

Middletown................................. 34

Millington................................... 11

Milton...................................... 12

Mondel...................................... 35

Monkton.................................... 19

Monrovia.................................... 61,65

Montevideo............................:.... 64

Montgomery County................ 8-10,24,29,47

Morgan.........:............................ 64

Motters..................................... 38

Mount Airy Junction:....................... 64

Mount Airy quadrangle.................. 29,64-65

Mount Carmel............................... 19

Mount Hope................................ 28

Mount Pleasant............................. 30

Mount Royal................................ 49

Mount Savage............................... 44

Mount Savage Junction..................'... 57

Mount Tabor................................ 34

.Mount Washington.......................... 20,51

Mount Winans.............................. 50

Mountain Lake Park........................ 65

Muirkirk..........'.......................... 63

Myersville................................... 34,40

N. 

Nanjemoy quadrangle....................... 28-29

Nanticoke quadrangle.......................

New Germany..............................

New Glatz..................................

New London................................

New Midway................................

New Windsor...............................

New York, Philadelphia & Norfolk R. R....

Newark......-..'.............................

Newton.....................................

Norbeck.....................................

Norfolk & Western Ry....................

North Branch...............................

North Junction..............................

Northeast.......................^...........

Northern. Central Ry........................

O.

Oak Crest................................... 63

Oak Grove, Del.............................. 14

Oakington..........................,......"... 60

Oakland.................................. 45,65,66

Oakland Park............................... 65

Oakland quadrangle................... 45-46,65-66

Oakton...................................... 45

Ocean City quadrangle...................... 16

Odenton.................................... 22,68

Oella........................................ 21,55

Page. 

Oldtown.................................... 44,56

Olney.....-.......'........................... 31

Orange Grove............................... 68

Osborne..................................... 61

Oxford quadrangle.......................... 12

P.

Palmer, W. C., work of. 

Park...................

Parkton.....................................

Parkton quadrangle.........................

Parkville....................................

Parsonsburg.................................

Patapsco....................................

Patuxent....................................

Pawpaw quadrangle.........................

Pen Mar.....................................

Pennsylvania R. R..........................

20,25,47,50,52,53,58,60,64 

Perrymansville..............................

Perryville...................................

Personnel, record of.........................

Peters Corners...............................

Petersville...................................

Pettibone, O. L., work of....................

Philadelphia, Baltimore & Washington R. R.

17,

Philadelphia, Wilmington & Baltimore R. R. 

Philopolis.................................

Phoenix.....................................

Pikesville...................................

Piney Creek.................................

Piney Grove................................

Pinto.......................................

Pisgah......................................

Pittsville quadrangle........................

Pocomoke City..............................

Point of Rocks..............................

Pomonkey..................................

Poolesville...................................

Poplar.......................................

Port Deposit................................

Port Tobacco.................................

Posey's wharf...............................

Potomac....................................

Potomac Avenue............................

Pratt........................................

10,20 

44 

60

19,66 

20 

16 

68 

68

43,67 

38 

19,

,66,71 

52 

CO 

5 

11 

33

10,17 

11, ,

18,22 

16 

19 

66 

20 

36 

44 

57 

27 

16 

15 

48

26,27 

32 

58 

18 

27 

27 

57 

39 

44

Precise leveling.............................. 8-10

Primary leveling............................ 10-46

Prince Georges County................... 20,26,47

Princess Anne............................... 15

Princess Anne quadrangle................... 15

Principle.................................... 18,60

Publication, previous..................'...... 5

Pumphrey.................................. 22

Pylesville................................... 18,19

QQuantico..............

Queen Annes County. 

Quenponcp...........

R.

Rawlings.................................... 57

Redhouse................................... 45

Reels Mill................................... 61,62

Reisterstown................................ 21

Relay....................................... 67,68
INDEX. 79

Relay quadrangle..................... 22-23,67-68

Reliance..................................... 14

Rhodesdale................................. 14

Ridgely..................................... 13

Ridgeville................................... 29

Rising Sun.................................. 18

Ritchie...................................... 25

Riverdale................................... 70

Rives........................................ 70

Robert,..................................... 57

Roberts..................................... 11,12

Rockdale.................................... 21

Rockville.................................... 31,69

Rockville quadrangle.................. 30-31,68-69

Rocky Ridge................................ 37

Rohersville.................................. 33

Rosedale.................................... 51

Rossville.................................... 58

Ruxton..................................... 51

S.

Sabillasville................................. 37

St. Denis.................................... 67

St. James.................................... 42

St. Michaels quadrangle..................... 12

Salisbury.................................... . 15

Salisbury quadrangle........................ 15

Sandy Hook (Antietam quadrangle)......... 32,33

Sandy Hook (Belair quadrangle)............ 19

Sandy Spring............................... 30

Sang Run................................... 45

Sassafras.................................... 11

Savage...................................... 63

Sea level, mean, definition of................ 6

Seabrook.................................... 71

Seaford quadrangle.......................... 14

Secondary elevations.................:...... 72-73

Security..................................... 39

Seitz, R. C., work of........................ 25

Semper, C. H., work of................... 10,17,35

Seneca...................................... 70

Seneca quadrangle........................ 32,69-70

Severn...................................... 22,68

Sowell....................................... 59

Shane....................................... 19

Sharpsburg.................................. 34,35

Sharretts.................................... 36

Shawan..................................... 20

Shephcrdstown...........................;. 34

Sherwood................................... 20,51

Shockeys.................................... 39

Silver Spring......................:......... 70

Skipnish.................................... 66

Smith, C. M., work of....................... 17,43

Smithsburg................................. 39,40

Smithville................................... 14

Smoketown................................. 40

Snow Hill................................... 16

Snow Hill quadrangle....................... 16

Somerset County............................ 10

Sparks...................................... 19,66

Spencerville................................. 23

Spielman...-:................................ 42

Spring Mills.................................. 35

Springfield.................................. 71

Stafford quadrangle......................... 29

Stemmer's Run............................. 58

Stepney..................................... 52

Stillpond.................................... 12

Stony Run................................... 68

Sudlersville........'......................... 11

Sunnyside................................... 63

Swan ton.................................... 52,53

Sykesville................................ 21,55,56

T. 

Talbot County.............................. 10

Taney town.................................. 36

Taneytown quadrangle...................... 35-36

Tanyard..................................... 12,13

Taylor....................................... 19

Taylorsville................................. 29

Texas....................................... 51

Thayerville.................................. 45,46

Thurmont................................... 37

Timonium................................... 20

Tolchester quadrangle....................... 12

Towson...................................... 20

Trappe...................................... 12

Trump...................................... 19

Tufts, W. 0., work of........................ 29

Tuscarora................................ 32,62,70

Twilley...................................... 16

U.

Union Bridge. 

Union Mills.. 

Union ville....

Unity........

Urbana........

35

36

29

30,31

30

V.

Vale Summit................................ 44

Van Bibber.................................. 59

Vienna...................................... 15

Vineyard.................................... 67

W. 

Wagners Crossroads......................... 40

Wakefield................................... 35

Walkersville................................. 30

Ward........................................ 69

Waring...................................... 69

Washington County................... 32,35,42,47

Washington Grove.......................... 31,69

Washington Junction........................ 48,49

Washington quadrangle.......... 8-10,24-26,70-71

Waterbury.................................. 22

Waterloo.................................... 23

Watersville.................................. 64

West Baltimore............................. 49

West Beaver................................ 40

West Friendship............................ 21

Western Maryland Ry ................ 35,38,39,41

Westminster................................ 21,35

Westminster quadrangle.................... 21

Westmore................................... 69

Westover................................... 15

Weverton................................... 33,48

Wheaton.................................... 31

Whiteburg.................................. 15

Whiteford................................... 18

Whitehall................................... 19

Whitehaven.................................. 15
80 INDEX.

Page. 

Whiteleysburg.............................. 13

Whites Ferry............................... 70

Whitman, J. M., work of.................... 10

Wicomico County........................... 10

Williamsport................................. 42,71

Williamsport quadrangle................. 41-42,71

Williston.................................... 13

Winans.................................. 22,67,68

Windham................................... 69

Wingate..................................... 14

Winstead, W. R., work of................... 32

Wolfsville................................... 40

Wood, Hargraves, work of................... 17,43

Woodberry.................................. 50

Woodbine................................... 64

Woodensburg............................... 21

Woodsboro.................................. 36

Woodside...............'.................... 70

Woodstock.................................. 21,55

Woolford.................................... 12

Worcester County........................... 10

Wye Mills................................... 12

f 

1

o