March 1950 

INVESTIGATION OF BEDROCK . DEPTHS 

BY ELECTRICAL-RESISTIVITY METHODS 

IN THE RIPON-FOND DU LAC AREA, WISCONSIN 

By 

H. Cecil Spicer 

IPr!OP~iV Of: 

\). S. l3COLnnc, L SURVC:Y 

p U 8 Ll C: I , -' 0 Lll R I E 5 0 t:" F" I C:: £=:: 

SAN FRANClSCO. CAI..lFORNI 
UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, Secretary 

GEOLOGICAL SURVEY 

W. E. Wrather, Director 

WASHINGTON, D. C. 

Free ct'\ application to the Director, Geological Survey, Washington 25, D. C. 
INVESTIGAT10N .OF BEDROCK DEPI'HS 

BY ELECTRICAL-RESISTIVITY METHQDS 

IN THE RIPON-FOND DU LAC AREA, WISCONSIN 

.H. Cecil Spicer 

CONTENTS 

Page 

Abstract •.......• 0. o o. o. o. o .. o. o............ 1 

Introduction. . . . . . . . . . • . . . . . . . . • . • . . • . . . . . . . • 3 

Location and geology. . . . . . . . . . . . . . . . . . . . . . . . • 3 

Field measurements •. 0 • • • • • • • • • • • • • • • • • • • • • • • 3 

Method of interpreting the resistivity curves ... ~ 3 

Summary of results .......•......•.•.•••••. 

Conclusion •.•.....•..••.••• 0 .............. . 

Appendix ..•..........•..•................• 

Interpretations of apparent resistivity curves 

Well logs .......•....•............•...•. 

ILLUSTRATIONS 

Figure 1. Map of Ripon - Fond du Lac area, Wisconsin, showing location of resistivity lines, lines of cross 

Page 

5 

6 

7 

7-11 

13-16 

Page 

sections, and drilled wells ........••..•.....••••.... o................................... 2 

2. Comparison of lithology in wells drilled in Fond duLac, Wisconsin........................... 4 

3. Cross section A-A •, Ripon to Fond duLac, Wisconsin .•.........•.....• o ...... o .. o.......... 6 

4. Cross section B-B', Rosendale, Wisconsin................................................. 8 

5. Cross section C-C', Rosendale to Fond duLac, Wisconsin................................... 8 

6. Cross section D-D', Fond duLac, Wisconsin ......•........•••..•...... o................... 10 

7. Cross section E-E', Fond duLac, Wisconsin............................................... 10 

8. Contours on the pre-Cambrian surface from resistivity resu,lts. . . . . . • . . . • . . • . . . . . . • • . • • . . . . • . 12 

,ABSTRACT 

Resistivity measurements are reported for an area 

in east-central Wisconsin which is mainly in Fond du 

Lac County. The geological materials overlying the 

pre-Cambrian bedrock stl!'face are glacial drift, 

dolomites, sandstones, siltstones, and limestones. 

The resistivity measurements were made with the 

Earth Resistivity Apparatus, a Gish-Rooney-type 

instrument. The pre-Cambrian rocks were identified· 

1 

on the apparent resistivity curves by their higher 

resistivity. The depths to the pre-Cambrian rocks, 

as geophysically determined, ranged from 355 feet 

to more than 1, 000 feet. The field measurements 

indicate that with favorable surface conditions, 

resistivity methods may be used in this area to locate 

the pre-Cambrian rocks to depths of approximately 

1, 500 feet. 
I 

I I 

N I 

1 

I 

I ,.,,_ I 

...... !.A Nl I 81() 

~~~ <7 zf! 

i~~ 

I 

' I ---t4 u''''o I 

G>RL·I I I EXPLANATION I • o·rllled well I 

I 0 

Resistivity lint 

I 

R-13-E R-14-E 

Base from Wisconsin State Highway Map, 

issued 1946 · 

RL-6 C-y 

8' 

) / R-15-E R-16-E 

Figure I.-Mop of" Ripon ~Fond du Lac area, Wisconsin 

Showing location of re&ittivity ~ines, lines of cross sections, and drilled wells 

0 I 2 I 4 5 6 MILES 

£' 

LAKE 

WlltWEBAGO 

@RL-Ig 

41 

R-17-E 

·y 

16 

N 

~ N 

H. Cecil Spicer, 1948 
INTRODUCTION 

The geophysical investigation of the depths to 

bedrock was undertaken upon request of the Ground 

Water Branch ·Office of the U. S. Geological Survey 

at Madison, Wis. The Wisconsin Geological Survey 

cooperated in the work by providing funds and field 

assistants. The field measurements were made 

during the period May 22 to June 10, 1947; the apparent resistivity curves were interpreted during 

March and April 1948; and the report was prepared 

after the curves were interpreted. 

The writer is grateful to Mr; Ernest F. Bean, 

State Geologist; Wisconsin Geological Survey, to Mr! 

Frank C. Foley, District Geologist, U. S. Geological 

Survey, and his staff, and to Mr. George i. Edwards; 

the author's co-worker, for the splendid assistance 

and generous cooperation extended, thus enabling the 

completion of the '·field assignment. 

LOCATION AND GEOLOGY 

The area in which the measurements were made 

is in the southern part of east-central Wisconsin in 

Fond duLac and Green Lake Counties. (See fig. 1.) 

The geology of the area has been described by 

Chamberlin 1/ and Thwaites, 2/ and numerous drill 

holes in the Vicinity have been Togged from the cuttings 

by Thwaites. 2/ The following summary was taken 

from the above sources. 

The soils of the area are variable, but mainly are clay, loam, or sandy loam. They are derived 

from the glacial drift and in some localities have con- siderable vegetable material and a resultant relatively 

dark color. The drift of the area was found to be 

usually less than 100 feet thick although loc.ally thicker. 

At one typical location southeast of Fond duLac, 

the formations in succession below the drift are: 

Galena dolomite; Platteville formation, including the 

Glenwood shale member; St. Peter sandstone; Prairie 

du Chien ("Lower Magnesian") dolomite; Jordan sandstone; sandstone and siltstone of the Trempealeau · 

formation; Franconia sandstone; Dresbach sandstone; 

and pre-Cambrian rocks. 

The pre-Cambrian· rocks of the area, as found by 

drilling, are mainly quartzites and slates of the buried 

Fond duLac range. These quartzitic rocks are similar in character to those of the Baraboo range to the 

southwest. The slates and quartzites have high electrical resistivity, thus making it possible to differentiate between them and the overlying sandstones and 

dolomites, even though the latter have a moderately 

high resistivity. 

FIELD MEASUREMENTS 

The measurements were taken with the Earth Resistivity Apparatus, which is a Gish-Rooney-type instrument as modified and constructed by the Geophysical Instrument Co., Arlington, Va. The electrodes are copper-clad steel rods with steel driving heads 

which were pushed or driven into the earth to make 

1

Chamberlin, T. C., Geology of eastern Wisconsin: Geology of Wisconsin,. 

2 v.ol. 2, survey of 1873-77, pp. 97-404, 1877. 

Thwaites, F. T., personal communication. 

3 

contact for the potential and current connections to' 

the instrument. Whenever contact with the earth 

was inadequate, the soil around the electrodes was wetted and tamped to reduce the resistance of the 

electrode contact. 

Depth profiling was used throughout this survey, 

as the character of the earth materials and depths to 

pre-Cambrian rocks were of main importance. A 

modification of the Lee variation of the Wenner electrode configuration was used and the electrode intervals were expanded outward from· the central station. 

With this method of taking observations, three apparent resistivity·curves were obtained at each 

station, ·one in each direction from the center and one 

over the full interval. These are termed the P 11 P2, 

and Full curves and indicated by~s, x's and0's, re- spectively, when plotted. Bearings for the depth 

profiles are referred to magnetic north and given for· 

the P1 direction. Power for driving the instrument was obtained from the truck battery, and current to 

pass through the earth was provided by a band of 

extra-heavy-duty "B" batteries. The fundamental 

technique for operating the Earth-Resistivity Apparatus is described by the maker of the instrument and 

in literature by Heiland ~/ and others. 

METHOD OF INTERPRETING THE 

RESISTIVITY CURVES 

The resistivity curves pbtained from this investigation were interpreted, in part, by means of 

procedures explained in literature on geophysics. 

The methods of interpreting resistivity curves, 

described in the references cited below, are based 

upon theoretical and mathematical considerations, 

and are presumed by the writer to be more reliable 

than any of the empirical methods of iriterpretation 

that have been advanced. Furthermore, all the 

methods mentioned below are based upon the theory 

of images ~/ and apply to two or more layers. 

A partial list of references on interpretation 

follows: 

Hummel, J. N. , A theoretical study of apparent 

resistivity in surface potential method: Am. Inst. 

Min. Met. Eng. Tech. Pub. 418, 1931. 

Roman, Irwin, How to compute tables for determining electrical resistivity of underlying beds· and 

their application to geophysical problems: U. S. Dept. 

Commerce, Bur. Mines Tech. Paper 502, 1931. ~ 

Roman, Irwin, Some interpretations of earth 

resistivity data: Am. Inst. Min. Met. Eng. Trans., 

vol. 110, p. 183, 1934. 

Roman, Irwin, Superposition in the inter.,retation 

of two-layer earth resistivity curves:· U. S. Geol. 

Survey Bull. 927-A, 18. pp., 1941. 

Tagg, G. F., Interpretation of earth resistivity 

curves: Am. Inst. Min. Met. Eng. Tech. Paper 755, 

1937. --

Watson, R. J. , A contribution to the theory of the 

interpretation of resistivity measurements obtained 

from surface potential observations: Am. Inst. Min. 

Met. Eng. Tech. Paper 518, 1934. 

Watson, R. J., and Johnson, J. F., On the ex- tension of two-layer methods of interpretation of 

earth resistivity data to three and more layers: Geophysics, vol. 3, no. 1, pp. 7-21, )938. 

!Heiland, C. A., Geophysical exploration, Prentice-Hall, 1940. 

Jeans, J. F., Mathematical theory of electricity and magnetism, 5th ed., 

Cambridge Univ. Press, 1925. 
0 

100 

200 

300 

..... 

~ 400 .... 

~ 

500 

2: 

..... 

CL 

IIJ 

0 

600 

700 

800 

900 

West Section North Central East Section 

Section Section 

Citl Test Galloway- Corium North Cit Test Test Cit 

well II well west Farm Fond du well~2 well•4 hole wellliO 

(TW on (GW on (CF on Lac "2 Me Dermott 

mop) mop) mop) Pork 

Figure 2.- Comparison of lithology in wells drilled in Fond du Lac, Wisconsin 

All wells, except the Corium Form well and the North Fond du Lac No.2 well, ore within the 

city limits of Fond du Lac, Wisconsin. 

4 

EXPLANATION 

~ 

~ 

Cloy 

E~$ 

Red cloy 

IIIII 

Gray cloy 

t:::.~t:t4 Till 

Dolomite 

~ 

Sandstone 

~ 

~ Shale 

Red 

~ 

~ 

shale 

Conglomerate 

~ 

~ 

Conglomerate 

~ 

~ 

and chert 

1;:}/9!) 

Siltstone 

Quartzite 

~ 

Red 

-

slate 
SUMMARY OF RESULTS 

Profile RL-1 was taken southwest of Utley near 

an exposure of .pre-Cambrian acidic rock to determine 

the electrical characteristics and extent of this body. 

According to the interpretation, a dense, compact rock 

having very high resistivity is present and is similar 

to the exposed acidic rock in electrical characteristics. 

The resistivity depth profiles RL-2 through RL-20 

were taken in the vicinity of Ripon and Fond du Lac to 

ascertain the depth to the pre-Cambrian surface, and 

profile RL-21, near Hartford, was taken to determine 

whether or not the pre-Cambrian could be reached 

here by resistivity methods. Unfortunately, a network 

of qround-return power lines surrounding the area in 

which profile RL-21 was taken caused serious interference with the resistivity measurements and as a 

result the interpretations from the curve, line 21, are 

considered uncertain. The depth to the pre-Cambrian· 

rocks is estimated to be-about 800 feet at the center of 

profile RL-21. The P1 and P2 curves indicate a rather 

steep slope on the pre-Cambrian surface. The depth 

to the pre-Cambrian on the P2 end is about 750 feet, 

and on the P1 end about 850 feet. 

Locations of depth profiles RL-1 through RL-20 

are shown on fiqure 1, but the location of profile RL-21 

could not be shown because this profile was taken abQut 

30 miles south of the area included in this fiqure. The 

appendix contains copies of the apparent-resistivity 

curves and their interpretations, locations for the 

centers of the profiles, the direction in which the electrode intervals were taken, and the surface elevations 

at the centers of the profiles. The interpretations of 

the apparent-resistivity curves are based mainly upon 

the in-place formation tests and the electrical resistivities computed for the materials of each apparentresistivity curve. 

Some information was available in the area from 

both drilled wells and test wells. Copies of the well 

loqs will be found in the appendix and locations of the 

wells are shown on fiqure 1. With the exception of 

well No. 2 at North Fond duLac and the Central 

Wisconsin Canning Co. wells at Ripon. and Rosendale, 

the wells are grouped near the city of Fond du Lac in 

an area about 2 miles wide and 2! miles long. In 

fiqure 2 nine logs in the vicinity of Fond du Lac are 

compared by qroups, namely, west section, north 

section, central section, and east section. The 

extreme variability in the depth to the pre-Cambrian 

quartzite and red slate, as well as the failure of some 

holes to reach the pre-Cambrian, are apparent in this 

figure. 

As the primary purpose of this geophysical investigation was to determine the depth to the preCambrian surface, the interpretations of the resistivity curves have been depicted graphically. (See 

figs. 3-7.) All the cross sections in this qroup are 

plotted with the altitude above sea level in feet as 

ordinate, and distance in miles as abscissa. Fiqure 

1 shows the location of these profiles. Figure 3, a 

west-east section from Ripon to Fond duLac, shows 

that the greatest depth to the pre-Cambrian surface 

is below RL-9. Figure 4, a north-south section at 

Rosendale, shows that the greatest depth to preCambrian is beneath RL-2. Another west-east section from Rosendale to Fond duLac, fi<}ll'e 5, shows 

the pre-.Cambrian deepening markedly near Fond du 

Lac. ·Figure 6 is a north-south section showing an 

almost continuously deep section except for RL-8, 

just west of Fond du Lac. Another north-south 

section, figure 7, indicates that the pre-Cambrian is 

deeper north of Fond du Lac but rises to the south and 

then drops steeply again beyond RL-15. 

Perhaps the generalized picture of the preCambrian surface as determined by the geophysical 

results can be more easily visualized from figure 8, 

which shows the predicted contours on the preCambrian. The resistivity-line locations were taken 

directly from figure 1 and are plotted on the same 

scale. Attention is directed to the conto\lX intervals 

of figure 8; in the eastern part the intervals are 20 

feet, whereas in the western part they are 100 feet. 

The smaller intervals were omitted in the western 

part because the stations were more widely spaced. 

The altitudes of the pre-Cambrian surface within 

the city limits of Fond duLac, as determined by 

drilling, are given in table 1. Comparison of these 

altitudes of the pre-Cambrian surface with those 

altitudes determined by the geophysical method employed shows very good correlation except for the TW 

and GW wells. If the drill-log altitudes of.the preCambrian for wells TW and GW are presumed to be 

correct, then the surface of the pre-Cambrian is 

almost clifflike between these locations and the 

Table 1- Altitudes of pre-Cambrian surface as determined from drilling logs 

Well Altitude of Well 

designation pre-Cambrian designation Altitude of pre-Cambrian 

(feet) (feet) 

11 - 0 12 0 

TW + 200 10 - 80 

MP* 4 30 

GW + 320 2* 

*Did not reach pre-Cambrian. 

5 
locations of wells 11 and 12. This is, of course, not 

an impossible subsurface condition, but it is not 

indicated either by the other drilling results or by the 

geophysical measurements. 

On the other hand, the altitudes of the preCambrian surface for wells 11 and 12 are approximately zero and are close to the geophysicaJly predicted zero contour. Wells 10 and 4 closely cOl·respond to the results for depth profile RL-13 and, 

furthermore, correlate well with the geophysically 

predicted -100 foot contour. The correlation between 

predicted contours and the drill-log data of the Corium 

Farm well, CF on figure 1, is poor if the questionable 

depth to quartzite is .considered correct. 

One particularly disconcerting anomaly was found 

at Rosendale, between the resistivity measurements 

and the drill log of the No. 3 well of the Central 

Wisconsin Canning Co. A resistivity measurement 

made about a quarter of a mile southwest indicated no 

pre-Cambrian rocks to a depth of 1, 000 feet. The 

material occupying the position where the pre-Cambrian 

was expected had a very low resistivity, more like clay 

in its electrical characteristics. A test northeast of 

· this well, RL-4, indicated pre-Cambrian at an 

altitude of 305 feet above sea level. A large number 

+1000 RL-5 

•EXPLANATION RL-4 

+ 850 s =Soil 

c • Cloy 

t • Till 

d = Dolomite + 700 !lS • Sandstone 

sit = Siltstone 

sh c Shale 

... + 5!10 pi: • Pre-Cambrian rocks : 

... d 

ss 

sh • Also refers to 

! + 400 Fi;ures 4-7. 

+ 2!10 

+100 

0 

-50 

-200 

of resistivity lines, or drill holes, would be needed to 

explain what is present here beneath the surf ace. 

CONCLUSION 

The resistivity results have shown that it is 

possible to determine the depth to the pre-Cambrian 

basement rocks where it is less than 1, 000 feet. With 

favorable near-surface conditions; it probably would 

be possible to increase the depth determinations to at 

least 2, 000 feet in this area. 

Several factors limiting electrical-resistivity 

measurements are generally present throughout the area. These are: (1) All the land is in use or Wlder 

cultivation, (2) wire fences with metal fence posts are 

prevalent, (3) ground-return power lines form a network over a considerable part of the area. These 

limiting factors could be minimized by choosing the 

autumn months for the field work so that access could 

be had to all fields, thus making it possible to get far 

enough away from sources of disturbances. In many 

instances, however, there would be no suitable area 

free from all the above-mentioned limiting factors, 

because of the great spread of electrodes needed to 

reach depths of 1, 000 feet or more. 

RL-9 

RL-11 RL-1.3 

t-~r-~ Frs 

t 

rd 

.. 

d 

n d 

ss 

sh 

sit 

d 

ar 

ss 

? 

? 

11'6 pt; 

Figure 3. Crou section A-A' Ripon To Fend du lac, Wisconsin 

0 4 a MILES 

6 
APPE:f\TDIX 

Interpretations of apparent resistivity curves 

Line 1 (G-2) 5/2.7/47. Along south side Chicago, 

MilwaUkee, St. Paul and Pacific Railroad branch and 

opposite marker 68 on pole. NEtSEt sec. 35, T. 15 

N., R. 13 E. P1 - N. 41! 0 E. Altitude 900 feet. 

Electrical depth profile 

Drift and till ......•..•...••... 

Clay .......................... . 

Dolomite and sandstone.! ...•... 

Sandstone either with a large amount of 

shale or saturated with mineralized 

water ..•...... · ..............•. 

Very dense, compact rock, probably 

acidic igneous similar to nearby 

outcrop .................••.•..• 

Depth 

(In feet) 

0- 4t 

4t-23 

23 -100 

190-445 

445-900 

Line 2 (G-2) 5/29/47. About 200 feet west of central 

Wisconsin Canilirig Co. well No. 3. 0. 25 mile north 

and 0. 25 mile east of the southwest corner of sec. 35, 

T. 16 N., R. 15 E. P1 - N. 6° W. Altitude 956 feet. 

Electrical depth profile 

Soil and clay ..•....•.•...•....•.• 

Till, large amount of rock .......•• 

Dolomite, probably some sandstone .•. 

Shale, or dolomite and sandstone 

saturated with highly mineralized 

water; probably highly fractured. 

No indication of'pre-Cambrian 

rocks to 800 feet ••...••.•••.•••.. 

Line 3 (G-2) 5/29/47. 0. 25 mile west of 

Depth 

(In feet) 

0- 6. 5 

6.5- 32 

32 -184 

184 -800 

center of sec. 25, T. 16 N., R. 15 E. P 1 - N. 82° 

E. Altitude 875 feet. 

Electrical depth profile 

Line abandoned after the 300-foot electrode interval because of some unaccountable electrical disturbance that caused very large galvanometer 

oscillations and a great divergence of the P1 and P2 

readings. 

Line 4 (G-2) 5/29/47. 0. 25 mile north of center of 

sec. 25, T. 16 N., R 15 E. P 1 - N. 3° E. Altitude 

875 feet. 

Electrical depth profile 

Clay soil .....•.........•.••..... 

Till with clay and stones ..•••.••.• 

Dolomite, some sandstone and 

shale .•...•.•.•..•••....•••.•.•. 

Sandstone and dolomite, dense and 

of low permeability ...•.•••••••..• 

Pre-Cambrian rocks .•.•••••••.•••. 

Depth 

(In feet) 

0- 4. 5 

4.5- 34 

34- 195 

195- 570 

570 -1,000 

7 

Line 5 (G-2) 5/30/45. On Lietz farm. NWtSEt sec. 

14, T. 16 N., R. 14 E. P 1 - N. 67° E. Altitude 

941 feet. 

Electrical depth profile 

Clay soil ........................ . 

Till .••••.•••••••••••••••••.•••••• 

Dolomite •••••.••.••.••••.••••.••• 

Sandstone, shale, dolomite •••••.••• 

Depth 

(In feet) 

0- 6. 2 

6.2- 16 

16- 67 

67- 255 

Siltstone, shale, some sandstone. • . • 255 - 568 

Pre-Cambrian rocks. . • • . • . • • • • • • • . 568 -1, 000 

The bottom layer of pre-Cambrian is dipping rapidly 

in the P1 direction and is approximately 80 feet deeper 

than in the P2 direction. The resistivity of this layer 

has an anomalous value, being higher than a theoretically perfect insulator. 

Line 6 (G-2) 5/30/46. 0. 25 mile east of southwest . 

corner of sec. 11, T. 15 N., R. 15 E. P1 - N. 82° 

E. Altitude 954 feet. 

Electrical depth profile 

Clay soil ........................ . 

Depth 

(In feet) 

0- 11.5 

Dolomite, some shale and sandstone ... 11.5- 235 

Shale, dolomite, sandstone. . . . . . . • • • 235 - 355 

Pre-Cambrian rocks................ 355 - 800 

Line 7 (G-2) 6/1/47. 0. 35 mile east of junction of KK 

with Highway 23 along south side of KK and on line 

between sees. 30 and 31, T. 16 N., R. 15 E. P1 - N. 

85° E. Altitude 939 feet. 

Electrical depth profile 

Clay soil .....•••..•••••••••••••••. 

Depth 

(In feet) 

0- 8. 5 

Dolomite, some sandstone and shale ••• 8. 5- 335 

Shale. . . • • • • • • • • • • • • • • • • • • • • . • • . • • 335 - 355 

Sandstone......................... 355 - 585 

Shale, some sandstone •..•. • . • • • • • • • . 585- 655 

Pre-Cambrian rocks................ 655- 1, 000 

The interpretation of depth to the pre-Cambrian 

rocks is from the P2 curve. It appears that the depth 

to pre-Cambrian is much greater on the P1 side of 

the profile. 

Line 8 (G-2) 6/2/47. 0. 3 mile south from road KK em 

line between sees. 13 and 14, T. 15 N., R. 16 E. 

P1 - N. 3° W. Altitude 853 feet. 

Electrical depth profile 

Clay soil ..••...•...••••.••••••.••.. 

Depth 

(In feet) 

0 - 6. 75 
+1000 

+ 850 

+ 700 

.... 

IIJ + 550 1&.1 

lo. 

! + 400 

00 IIJ 

Q 

:::) 

.... + 250 

j: 

..J 

Cl 

+100 

0 

-50 

- 200 

RL-4 

ss 

d 

pe 

·S 

? 

RL-2 

~r· 

sh 

d 

ss 

RL-6 

s 

ld 

sh 

ss 

-? 

? 'pe 

FtJr EXPLANATION 6ilil Figuril .J. 

Figure 4. Cross section B- B' 

. Rosendale, Wisconsin 

0 I 2 3 4 MILES 

I I RL-6 

I I l.t 

ss 

RL-8 

ITS RL-17 

s 

ip(: 

For EXPLANATION 6tlt1 Fif1UrtJ .J 

Figure 5. Cross section C- c• 

Rosendale-Fond du Lac, Wisconsin 

0 I 2 3 4 MILES 
Line 8 (G-2) 6/2/47 - Continued 

Dolomite; perhaps some till above. . • 3. 75 -107 

Shale, dolomite, sandstone. . . . . . . . . 107 - 395 

Pre-Cambrian rocks. . . . . . . . . . . . . . . 395 - 1, 000 

The depth to pre-Cambrian is about 30 feet greater 

on the P2 side of the profile. 

Line 9 (G-2). 0. 35 mile west of road I on east-west 

line of sec. 35, T. 16 N., R. 16 E. P1 - N. 86° E. 

Altitude 861 feet. 

Electrical depth profile 

Clay soil. ........................ . 

Depth 

(In feet). 

0 - 38 

Till............................... 38 - 76 

Dolomite, sandstone. . . . . . . . . . . . . . . . 76 - 1, 000 

No certain indication of pre-Cambrian rocks. The 

last four or five observations indicate the presence of 

a layer having relatively low resistivity which might 

be slate. 

Line 10 (G-2). 0. 35 mile south of road N and 1. 0 mile 

west of Highway 41 along west side of road, sec. 19, 

T. 16 N., R. 17 E. P1 - N. ff W. Altitude 814 feet. 

Electrical depth profile Depth 

(In feet) 

Clay soil. . . . • . • . . . • . . . . . . . . . . . . . . . . 0 - 15 

Dolomite, perhaps some till above .. _. . 15 - 85 

Dolomite and sandstone. . . . • . . . • . • . . • 85 - 1, 000 

No indication of pre-Cambrian rocks. A change of 

material is indicated at about 650 - 700 feet and has 

·lower resistivity than the layer above. 

Line 11 (G-2) 6/4/47. · 0. 3 mile west of Highway 41 

on road 000 along north line of sec. 9, T. 15 N. , R. 

17 E. P 1 - N. 85 E. Altitude 757 feet. 

Electrical depth profile 

Clay soil ......•.•.•..••.•.••..•..• 

Depth 

(In feet) 

0 15 

Till, probably considerable clay. . . . . 15 - 34 

Dolomite, sandstone. . . . . . . . . . . . • . . . 34 - 385 

Interpreted qualitatively because of 

some extraneous electrical interference ........................... 385 - 1, 000 

The material in the 385 - 825-foot zone has a 

generally low resistivity except for a somewhat higher 

resistivity in the 650 - 750-foot layer. The material 

in this zone is probably shale or siltstone interbedded 

with dolomite or sandstone. Based on the P2 curve, 

mainly, the material below 825 - 875 feet appears to 

be of pre-Cambrian age. 

Line 12 (G-2) 6/4/47. 0. 29 mile east of Highway 41 

on north line of sec. 29, T. 16 N., R. 17 E. P 1 -

N. 84 ° E. Altitude 788 feet. 

9 

Line 12 (G-2) 6/4/47- Continued 

Electrical depth profile Depth 

(In feet) 

Soil, clay, drift. . . . . . . . . . . . . . . . . . . . . . 0 - 32 

Dolomite. . . . . • . . . • . . • • • . . . . . . . . . • • . . 32 - 94 

Dolomite, sandstone. . . . . . • • • • • . • . . . . . 94 - 420 

Shale, siltstone, sandstone. . . . . . . . . . . 420 - 1, 000 

There is a large variation in the depth to the lowest 

layer along the profile. The above-interpreted depth 

is from the F-curve but is controlled by the P 2 curve. 

The depth to the lowest layer from the interpretation 

of the P1 curve is :!: 700 feet. There is no indication 

of pre-Cambrian rocks. 

Line 13 (G-2) 6/5/47. 0. 35 mile north of Highway 23 

on center line of sec. 12, T. 16 N., R. 17 E. P1 -

N. 7° E. Altitude 762 feet. 

Electrical depth profile 

Soil, clay ...••..................... 

Depth 

(In feet) 

0 - 11 

Till .. .-.. . . . . . . . • • . . . . . . . . . . . . . . . . . . 11 - 86 

Dolomite and sandstone.............. 86 - 850 

Pre-Cambrian rocks. . . . • . . . . . . . . . . 850 - 1, 000 

The depth to pre-Cambrian is less on the Pl side 

of the profile, being about 675 feet. The P 2 s1de of 

the profile has a depth of about 950 feet to preCambrian. 

Line 14 (G-2) 6/5/47. On ~ld interurban roadbed and 

parallel to Milwaukee Railroad. 0. 3 mile south of 

north line of sec. 8, T. 16 N., R. 17 E. P 1 - N. 20• 

w. Altitude 799 feet. 

Electrical depth profile Depth 

(In feet) 

Soil, clay. . . • . . . • • . . . • • . . . • . . . . • . • . . 0 - 10 

Clay .....••••.•............•.....•.. 10 - 16 

Till, dolomite, sandstone .......•..... 16 - 392 

Shale, siltstone, dolomite ...••....... 392 - 470 

Sandstone and shale ...•....•......... 470 - 1, 000 

There is a pronounced low-resistivity layer on the 

P1 side of the profile between 375 and 550 feet that is 

hardly apparent on the P2 curve. Similarly, there is a 

low-resistivity layer on P 2 between 825 and 1, 000 feet 

that is not present on P 1. These layers are considered 

to be shale .or siltstone. 

Line 15 (G-2) 6/6/47. About 100 yards west of center 

of sec. 33, T. 15 N., R. 17 E. P 1 - N. 89° E. 

Altitude 826 feet. 

Electrical depth profile Depth 

(In feet) 

Soil, clay........................... 0 - 10 

Till ...••.••..•..................... 10 - 82 
+ 850 

+ 700 

+ 550 .... 

1&1 

1&1 

... 

+ 400 

! 

+ 250 

+100 

0 

-50 

-200 

+1000 

+ 850 

+ 700 

+ 550 .... 

1&1 

1&1 

.... 

+ 400 

! 

+ 250 

+100 

0 

-50 

-200 

RL-10 

d 

d 

ss 

c 

s 

RL-9 

d 

ss 

c 

s 

Figure 6. Cross section 

0 2 

RL-14 RL-12 s 

c s 

c 

d 

t 

d 

ss 

d 

ss 

fsh 

·~· 

sh ss sit 

sh ss 

RL-8 

c 

• 

sh 

d 

IS 

RL-18 

s 

c 

d 

ss 

RL-20 

d 

.. 

For EXPLANATION s•• Figur• ~ 

o-o· Fond du Lac, Wisconsin 

3 4 5 6 MILES 

RL-15 

RL-16 

111:.~7 

RL~/1 

d 

ss 

d 

ss 

sh 

d 

ss 

d 

ss 

sh 

sit 

d 

or 

ss 

'7 

For EXPLANATION H• Figu,_ ~ 

Figure 7, Cross section E-E' Fond du Lac, Wisconsin 

0 2 3 4 6 MILES 

10 
Line 15 (G-2) 6/6/47 - Continued 

Dolomite, sandstone; shale or 

siltstone layer '710 - 770 feet .•..•... 

Pre-Cambrian r-ocks; last three 

observations have a steep rise but 

are not adequate to make a good 

Depth 

(In feet) 

82- ;875 

interpretation ..•..........• ." •..•.•• !:: 875-1,000 

Line 16 (G-2) 6/6/47. 0. 3 mile south of county trunk 

highway FFF on center line oi sec. 4, T. 14 N., R. 

17 E. P 1 - N. 0° E. Altitude 842 feet. 

Electrical depth profile Depth 

(In feet). 

Soil, clay.......................... . 0 - · 7. 5 

Till. . . . . . . . . . . . . • . . . . . . . . . . . . . . . . • 7. 5- 192 

Dolomite; sandstone. . . ... . . . • . • . • . . . . 192 - 1, 000 

No indication of pre-Cambrian rocks. 

Line 17 (G-2) 6/9/47. 0. 3 mile west of e~st line and 

on center line of sec. 17, T. 15 N., R. 17 E. P1 - N. 90° W. Altitude 790 feet. 

Electrical depth profile 

Soil, clay •.•.....•..•..•.••••.•••• 

Dolomite, sandstone •.•.••.•••••••• 

Depth 

(In feet) 

0- 14 

14- 750 

Pre-Cambrian rocks. • . . . • . • • • • • . • • 750 - 1, 000 

Line 18 (G-~. 0.? mile south of county trunk highway 

Ton west I e of sec. 19, T. 15 N., R. 17 E. P1- N. 

10° w. Altitude 828 feet.:!:. 2 feet. 

Electrical depth profile 

Soil, clay ••••.•••••••.•••••••..••• 

Depth 

(In feet) 

0- 7. 25 

Clay .•• : .•••.•.••.•.•••• :......... 7. 25- 13 

Till............................... 13 - 55 

Dolomite and sandstone............. 55- 1, 000 

11 

Line 19 (G-2) 6/10/47. 1, 500 feet northwest of overpass on Chicago ancrN'orthwestern Railroad in NWt sec. 26, T. 15 N., R. 17 E. Abandoned because of 

some unidentified electrical interference with the 

measurements. 

Line 20 (G-2) 6/10/47. Along county hiqhway D, 0. 25 

Iriiie north of county hiqhway FFF in sec. 6, T. 14 N., 

R. 17 E. P 1 - N. 25° E. Altitude 840 feet. 

Electrical depth profile 

Soil .. ...•.........•..•........... 

Till, considerable coarse material ..... 

Till, some silty material •••.•••..•• 

Depth 

(In feet) 

0- 4 

4- 19 

19- 252 

Dolomite and sandstone. . • • . . . . • • • • • 252 - 1, 000 

No indication of pre-Cambrian rocks. 

Line 21(G-2) 6/11/47. Near Hartford, Wis. 0. 25 

mile west of east lirie arid 0. 3 mile north of south line 

of sec. 29, T. 10 N., R. 18 E. P1 - N. 3° W. 

Altitude 1, 026 feet. 

Electrical depth profile 

Soil ••••••••••••••••••••••••••••• 

Clay ..........•.•....•.••..•.•.. 

Till .... .......•....•..•.•.•.•... 

Limestone •.••••••.•••••••••••.•• 

Shale, dolomite •••••••• ~ •••.•. ~ .• 

Depth 

(In feet) 

0- 4 

4- 8 

8- 26 

26- 195 

195- .;.8oo 

Pre-Cambrian rocks. • • • • • • . • . • • . • !:: 800 - 950 

The indication from the P2 curve is ;. 750 feet and 

from the P 1 ;. 850 feet. · However, because of serious 

interference from a qround-return power line, the 

indications are considered uncertain. 
..... 

1\.) 

b:j -----------+400 ----

N I 

I 

I 

I I R I 

I I 

1->I> 1- z z 

:;)I:;) 818 

~~ 

I I IAJO ~~~ IAJZ 

~~~ 

I 

Utley 

0 I I 0

RL·I I I 

I EXPLANATION 

• I Drilled well 

I 0 

Resistivity depth profile 

I 

R-13-E R-14-E 

Bose from Wisconsin State Highway Mop, 

issued 1946 

Figure 8. 

eRL-7 

+284' 

R-15-E 

Oakfield 

R•J&•E 

Contours on the pre-Cambrian surface from resistivity results 

0 I 2 3 4 5- 6 MILES 

Contour intervals 100 feet and 20 feet 

MTIIM q MIMI .lEA I.EI'El. 

£' 

R•I7•E 

LAKE 

WINNEBAGO 

0RL·I9 __ 

NG 

T 

16 

N 

T 

IS 

N 

T 

14 

N 

H. Cecil Spicer, 1948 
Well logs 

Central Wisconsin Canneries Well Ripon, Wis. 

(NWtSWt sec. 22, T. 16 N. , R. 14 E. Aibtude about 940 feet) 

Depth 

(in feet) 

Drift............................. 0 - 25 

Dolomite ................ ·. . . . . . . . . 25 - 65 

Sandstone. . . . . . . . . . . . . . . . . . . . . . . . . 65 - 110 

Shale. . . . . . . . . . . •. . . . . . . . . . . . . . . . . . 110 - 115 

Dolomite. . . . . . . . . . . . . . . . . . . . . . . . . . 115 - 135 

Sandstone ........................ . 135 - 145 

Depth 

(in feet) 

Stony till ......................... . 0 - 29 

Dolomite ......................... . 29 -130 

Sandstone and shale .....•...•....... 130 -145 

Dolomite ...••.••.............•.... 145 - 175 

Dolomite ........................ . 

Sandstone and siltstone ........... . 

Sandstone and siltstone ........... . 

Shale ........................... . 

Sandstone ....................... . 

Shale ••.•.•••••.•.•.•.•••.•..•.•• 

Dolomite ....................... . 

Sandstone .....•.................. 

Quartzite ....................•... 

, , City well No . . 11, Fond duLac, Wis. 

(NEtSWtNWt sec. 10, T. 15 N. , R. 17 E. Altitude 755 feet) 

Depth 

{in feet) 

Red till. . . • . . . . • . . . . . . . . . . . . . . . . . . . 0 - 20 Sandstone ............ · ............ . 

Stony till. . . • . . . . . . . . . . . . . . . . . . . . . . . 20 - 70 Dolomite ......................... . 

Dolomite. . • . . . . • . . . . . . . . . . . . . . . . . . . 70 - 255 Sandstone ........................ . 

Sandstone.......................... 255 - 350 Siltstone ......................... . 

Red shale.......................... 350 - 415 Sandstone ........................ . 

Test well {TW on map), Fond du Lac7 Wis. 

(NEtSEt sec. 9, T. 15 N., R. 1 E.) 

Clay .............................. . 

Depth 

{in feet) 

0- 5 

Red till...... . . . . . . . ... . . . . . . . . . . . . . 5 - 10 

Stony till.......... . . . . . . . . . . . . . . . . . 10 - 50 

Dolomite. . . . . . . . . . . . . . . . . . . . . . . . . . . 50 - 195 

Sandstone. . . . . . . . . . . . . . . . . . . . . . . . . . 195 - 255 

Shale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 - 265 

Sandstone ........................ . 

Dolomite ......................... . 

Sandstone ........................ . 

Dolomite: ........................ . 

Sandstone and 

siltstone ........................ . 

Depth 

(in feet) 

145 - 220 

220 -280 

280 -380 

380 - 395 

395 -495 

Depth 

(in feet) 

175-180 

180-280 

280 -440 

440 -442 

Depth 

(in feet} 

415- 460 

460 - 465 

465 - 545 

545 - 560 

560 - 750 

Depth 

(in feet) 

310- 320 

320 - 350 

350 - 385 

385 - 410 

410 - 555 

Dolomite. . . . . . . . . . . . . . . . . . . . . . . . . . . 265- 310 Quartzite. . . . . . . . . . . . • . . • . . . . • . . . . . 555 - 580 

13 
Test well, Galloway-West Co. (GW on map}, Fond duLac, Wis. 

(SEfNEt sec .. 16, T. 15 N., R. 17 E.) 

Depth 

(in feet) 

Till. ..• ·....••..•......•............ 0 - 31! 

Dolomite. . . . . . • . . • . . . . . . . . . . . • . . . . . 31!- 205 

Shale............................... 205-210 

Sandstone ...•.•... ·. . . . . . .. • . . . . . . . . . . 210 - 345 

Depth 

(in feet) 

Dolomite. . . . . . . . . . . . . . . • . . . . . • • . . . . . 345 - 355 

Sandstone. • . . . . . . . . • • . . . . • • . • • . . • • . . 355 - 435 

Quartzite. • . • . . . • . . . . • . . • • • . • . • • • • . . 435 - 477 

Corium Farm well (CF on map), Fond duLac, Wis. 

(NWtsec. 22, T. 15 N., R. 17 E.) 

Depth 

(in feet) 

Clay and hardpan. . . . . . . . . . . . . . . . . . . . . 0 - 80 

Dolomite. . . . . . . • . . . . . . • . • . . . . . . . . . . . 80- 285 

Sandstone and shale .......•...•....... 285 - 320 

Dolomite. . . . . . • . . . . . . . . . . . . . . • . . . . . . 320 - 332! 

Sandstone. . . . . . . . . . . . . . . . . . . . . . . • . . . 332!- 340 

Depth 

(in feet) 

Dolomite. . . . . . . . . . . . • . • . . . • . . • . . . . . 340 - 450 

Sandstone. . . . . . . • . . • . . • . . • • . . . • . . . . 450 - 535 

Conglomerate. . • . . . • • . . • . . • . . . . . . • . 535 - 550 

Sandstone. . . . . . . . . • . . • . • . • . . • . . • . . . 550 - 555 

Quartzite (? ). • • • • • . • . • • • • • • • • • • • • • • 555 + 

Test well No. 4, Fond duLac, Wis. 

(NEtNEtNWt sec. 11, T. 15 N. , R. 17 E. Altitude 753 feet) 

Depth 

(in feet) 

Red clay ........•................... 0- 10 

Till. . . . . . . . . . . . . . • . . . . . . . . . . . • . . . . . . 10 - 125 

Dolomite. . . . . . . . . . . • • . . . . . • • • . . . . . . . 125 - 315 

Sandstone ...•..... ; . . . . . . . . . . . . • . . . . 315 - 400 

Siltstone, shale. . . . . . . . . . . . . . . . . . . . . 400 - 570 

Sandstone ................•.......... 570- 645 

Depth 

(in feet) 

Siltstone ....... · • . . . . • . • • • • • . • . . . . . . 645 - 650 

Sandstone. . . . . • . • . • . • . • . • . • • • •• . . . . 650 - 710 

Siltstone........................... 710- 760 

Sandstone. . . . . . • . • • . • • • . . . • . • . . • . . • 760 - 780 

Red shale.......................... 780 - 817 

Test welli McDermott Park (MP on map), Fond duLac, Wis. 

(NWfSET sec. 11, T. 15 N., R. 17 E. Altitude 765 feet) 

Depth 

(in feet) 

Clay and till......................... 0 - 50 

Till. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 - 142 

Dolomite ............................ 142 - 325 

Shale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325 - 335 

Sandstone ........................... 335 - 405 

14 

Depth 

(in feet) 

Siltstone. . . . . . . . . . . . • . . . . . . . . . . . . . . 405 - 425 

Sandstone .........•. · . . . . . • . . . . . . • . . 425 - 460 

Siltstone........................... 460- 510 

Dolomite........................... 510 - 540 

Siltstone ........••...•...• , . . . • . • . . 540 - 585 
City well No. 10, F~nd du Lac, Wis. 

(NE-tNW-tNWt sec. 11, T. 15 N. , R. 17 E. Altitude 755 feet) 

Depth 

(in feet) 

Red clay............................. 0 - 60 

Clay. . . . . . . . . . . • . . . . • . . . . . . . . . . . . . . . . 60 - 100 

Dolomite .........••...... _. . . . . . . . • . . 100 - 300 

Sandstone ....•....•...•.•............ 300 - 465 

Conglomerate .... ~ . . . . . . • . . . . . . . . . . . . 465 - 480 

Depth 

(in feet) 

Sandstone .. · ..............••.....•.•. ·. 480 - 490 

Dolomite (no sample) .........•..•.... 490 - 500 

Sandstone. . . . . . . . . • • . . . . . . . • . . . • . • . . 500 - 835 

Slate .......•...•...•....•...•.•...•. 835 - 885 

Well No. 2, North Fond duLac, Wis. 

{sec. 32, T. 16 N., R. 17 E.) 

Depth 

(in feet) 

Drift................................ 0 - 10 

Till................................. 10 - 46 

Dolomite. . . . • . . . . • • • . . . . . . . . . • • . . . . . 46 - 225 

Sandstone. • . . . . . . . . • • . . . . . . . . . . . . . . . . 225 - 380 

Shale. . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . 380 - 387 

Depth 

(in feet) 

Sandstone •...••.....•.••.......••..•• 387 - 400 

Siltstone and shale •.........•.......•. 400 - 435 

Conglomerate and chert ..•.•..••.....• 435 - 455 

Sandstone. . . . . . . . . . . . . . . . . . . . . . . . . . . • 455 - 655 

(siltstone 475 - 485) 

Well No. 2, West Ice and Cold Storate Co. , Fond du Lac, Wis. 

(NWf NWt sec. 15, T. 1 N., R. 17 E.) 

Depth 

(in feet) 

Red clay............................. 0 - 10 

Till................................. 10- 35 

Depth 

(in feet) 

Dolomite .......•............ , .--. • . • . • . 35 - 200 

Cit~ well No. 12, Fond duLac, Wis. 

(NW-rSEt sec. 10, T. 15 N., R. 17 E.) 

Depth 

(in feet) 

Till....... . • • . • • . • . . . . • . . . . • . . . . . . . . 0 - 35 

.Stony till. . . . . • . . . . . . . . . . . . . . . . . . . . . . 35 - 105 

Dolomite. • . . . . . . . . . . . . • . . . . . . . . . . . . . 105 - 290 

Sandstone. . . . . . . • • . . . . . . . . . . . . . . . . . . 290 - 430 

Shale .•.........•. ~................. 430 -470 

Depth 

(in feet) 

Sandstone ...........•..•............. 470- 490 

Dolomite. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490 - 495 

Sandstone. . . . . . . . • . . . . . . . . . . . . . . . . . . . 495 - 520 

Siltstone. . . . . . . . . . . . . . . . . • . . . . . . . . . . • 520 - 565 

-Sandstone ........... ~ . . . . . . . . . . . . • . . . 565 -740 

City well, Hartford, Wis. 

(NW-t sec. 16, T. 10 N., R. 18 E. Altitude 1010 feet) 

Depth 

(in feet) 

Glacial drift......................... 0 - 35 

Limestone. . . . . . . . • . . . . . • • . . . . • . • . . . . 35 - 55 

Shale. . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . 55 - 85 

Limestone. . . . . .. . . . . . . . . . . • . . . . . . . . . . 85 - 100 15 

Depth 

(in feet) 

Shale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • 100 - 300 

Limestone. . . . . . . . . . . . . . . • . . . . . . . . . . . 300 - 535 

Sandstone ........•.•................• 535 - 550 

Quartzite ....... : . • . . . . . . . . . . . . . . . . . • 550 - 735 
City well No. 2 1 Hartford Wis. 

(T. 10 N. 1 R. 18 E. 1 sec. not given) 

Depth 

(in feet) 

(Old filled pit}. . . . . • • . . . . . . • . . . . . . . . . 0 - 66 

Shale. . . • . • . . . . . • . . . . . . . . . . . . . . . . . . . 66 - 95 

polomite ............... w • • • • • • • • • • • • 95 - 105 

Shale ...•.•....................... ; . 105 - 115 

Dolomite .. : .... ._.................... 115 - 130 

Shale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 - 165 · 

16 

Depth 

(in feet) 

Dolomite. . . . • . . . • . • • . . • • • • • . . . . . . • . 165 - 100 

Shale ......•..•.......•.....•..... ·. 190 - 280 

Dolomite. . . . . . . . . . . . . . . . . . . . . . . . . . . 280 - 532 

Quartzite. . . . . . . • . . . . . • . . . . . • . . • . . • . 532 -1370 

Basalt or diabase .................... 1, 370-11 385 

Quartzite.......................... 11 385-1,410 
100,000 r---------i 2 3 4 

~ u 

:::;;; 

= 0 

~ 

~ 10,000 

V'i 

t.l 

= f-< 

z 

t.l A < = X 

~-

..... 

....... 1,000 l' ' ~ t_l I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I J I I I I I I I '-I I I I I I' 

6 8 T 8 9 1 2 3 4 IS 6 T 8 9 

Line 1 (G-2) Ripon, Wis. 5/25/47 

Location: NE. 1/4 35, T. 15 N., R. 13 E., 

On S. side of ~ilwaukee R. R. Branch 

opp. marker 6R on R. R. 

Dearing: P-1 N. 41 1/2° E. 

Elev. 900' 

Bearing: ·P-1 N. 41 1/2° E. 

Elev. 900 1 

0 • Full curve 

X - P-2 curve 

A -.· P-1 curve 

• 
100!00(f - - - ~ - - - - - - =~~~§~~~;;~~~~=~~~~==§3=~~~~~~~~~s;;;;;;~~~~~;~g;§g;~~§~;§~~~~=~-~=··=::;· ... 

llllllliUIIIilf91;11iiiiiii~IH~~Hiiiiilillllllllllllil;lliiiill!~:i~~~i!j; i~~:::: :~ ...... 9

00 111111UIIIiliiiiilllllllllllllllllll!lllllll;;;;;;;lilll!li;iii!;;;;;,::;,:;,, ;:· ~ . 

~ u 

~ I 

~ 

~ 10,000 

c:: 

a.. 

~ ~ 

1,000 10 

EU"..C1'AADE OOERVAL -FEET 

10 

9 

8 

7 

6 

5 

4 

3 

2 

4 

3 

Line 2, Ripon, Wis.5/29/47 

Location: 1/4 mi. N. E .• 1/4 mi. E. of the 

SW corner' sec.-35., T. 16 N .. R. 1!'; E., 

2oor iJ. of Rosendale cannery ~ell \\. ~£ 

Rosend'sle. Wis. 

[earing: ·P-1 N. 6°W. 

Elev. 956 1 

0 -Full curve 

2 X - P-2 cur'lle 

A - P-1 curve 

4 
100,~ ~------------~ 

2 3 4 

Vl I HTIJH1111J1Htlllftlffiiiiiiiiiiiiiiiiiiiiiiiiiiiiii~IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII·~IIIIIIIIIIIIIIIIITI- ::.. 

u 

~ ~ 

::: E= 10,~ Vl 

V) 9 r.:l 

g:: 8 E-< 

z 

r.:l 7 g:: 

< c.. 

c.. 

< 

0 

! 

...... 

1.0 1,000 5 8 T 8 5 10 

ELECTRODE INTERVAL-FEET 

10 

9 

8 

T 

6 

6 

4 

3 

2 

Line 3 (G-2) Ripon, Wis. 5/29/47 

Loca~ion: l/4 mi. W. of center sec. 25, 

a :T. 16 N., H. 15 E. 

Dearing: P-1 N. !12° E. 

Elev.: 1175' 

6 

6 0 - Full curve 

4 

X- P-2 curve 

3 A..JP-1 curve 
~ ·lOO,OOQ 

9 

8 

6 

5 

4 

3 

2 

I en 

:; 

u 

:; 

::I: 

0 

I 

~ ;:: 

~ 10,000 en 

U) 

I 

9 (.:J 

CJ:: 

E-o a 

z 

(.:J 

CJ:: 7 

<! 

0.. 

~ I 6 

6 

4 

2 

1,000-· I 1 I I I I I I I I I I I I I I I I I II II I I I I I I I I I I I I I Ill I I !Ill 

10" 2 3 4 6 6 7 8 100 2 3 4 5 6 7 8 

ELECTRODEINTERVAt.-FEET 

Line 4 (G-2) Ripon, Wis. 5/29/47 

Loc-ation: l/4 mi. N. of center sec. 25, 

T.l6 N., R. 15 E. 

Dearing: P-1 N. 3 ° E. 

E!ev.: R'75 1 

0 -Full curVE" 

X - P-2 curve 

/1:;. -' P-l curve 
en 

:::;;; 

u 

:::;;; 

= 

~ ~ 

> E: 

en 

~ 

~ 

tl 

< c.. 

c.. 

< 

1\) 

...... 

100,000 .-------~"'"""'"1 

e 

B 

15 

4 

3 

2 

I 

10.000 

I 

9 

B 

7 

I 6 

15 

4 

2 

5 10 

2 3 4 

2 3 4 

15 6 7 e 9 1 2 3 4 ·15 6 7 B 9 

Line 5 (G-2) Ripon, Wis. 5/30/45 

L~a!ion: NW. 1/4 SE·. 1/4 sec. 14. 

T. 16 N., R. 14 F.. on Lietz's farm. 

Dearing: P-1 N. 67° E. 

Elev.: 941 

0 - Full curve 

X - P-2 curve 

3 &_ _ P-1 curve 

5 2 3 4 5 6 7 

ELECTRODE INTERVAL-FEET 
I'\) 100,000 - - - - - - - - - - - - 10 I'\) 

9 9 

8 8 

T 7 

6 6 

5 5 

4 4 

3 

21 I I I I I I I I. I ! tl' IIIII I I I I I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIFFIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII I I I I I I 11111'1'11111111 I I I I I I lllllllllllllllllilllllllllllllllllllll.llllllllillllt'lll'liiliililll!!l2 

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5§ Line 6 (G-2) Ripon, Wis. 5/30/46 'T 

~ 

> 10,000 1 Location: 1/4 mi. E. of SW. cor. sec. 11, 

E=: T. 15 N., R. 15 E. r.n 9 (i) 

C.:J Ilearing: P-1 N. R2° E. 8 a:: 

E-< 

:z: 7 Elev.: 954 1 

C.:J 

a:: 

< 0.. 6 6 

~ 

15 5 0 -Full curve 

0 4 4 X - P-2 curve 

31 I IiI II! IiI i 111111111 I I I I 111111111111111111111111111111111111111111111111111111111111111111!111111111 I I i I 1111111111111111 I I I I 11111111111111111111111111111111111111111111111111111111111111111111111111113 A- P-1 curve 

X 2 2 

1,000 I I I I I I I I I I I I I I I I I I I I Ill I I I I I I I I I I I If I I I I !ll!!llll 

5 10 2 4 15 8 T 8 100 2 3 4 15 8 T B 

ElECTRODE INTERVAL- FEET 
en 

~ :::;;; 

9 

~ ~ 

~ =: 

~ =: 

< 

c.. 

c.. 

< 

100,000 

10,000 

1\) 

w 1,000 

0 

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5 

2 3 4 5 8 

9 

8 

T 

6 

6 

4 

3 

9 

a 

7 

6 

6 

4 

3 

10 2 3 4 s 8 

T 8 9 1 2 3 4 5 

T 8 100 2 3 4 s 

ELECTRODE IN'I'ERVAL- FEI!:T 

8 T 

8 7 

8 9 

, 8 . 1,000 

Li11e 7 (G-2) Ripon, Wis. 6/l/47 

Location: 0.35 mi. E. of Junction KK. 

with Hwy. 23. On S. side of KK. on 

line between sees. 30 and 31, T. 16 1'\., 

R. 15 E. 

Dearing: P-1 N. 85 ° E. 

Elev.: 939 1 

o- Full curve 

x- P-2 curve 

A- P-1 curve 
1'\) 100,000 2 3 4 6 

~ 9 

8 

T 

6 

s 

4 

3 

2 

I ~ u 

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= '? 

~ 

> 10,000 

9 E=: 

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8 

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s 

4 

' 

3 

2 

5. 10 

6 T 8 9 ' 2 3 4 6 

100 

ELECTRODE INTERVAL- FEET 

6 T 8 9 

Line R (G-2) Ripon. Wis. 6/2/47 

Location: 0.3 mi. S. from County ttwy. KK. 

between sees. 13 and 14, T. 15 N., R. 16 E. 

on W. side of road. 

Dearing: P-1 N. 3 ° \V. 

Elev. 853 1 

0- Full curve 

X- P-2 curve 

A- P-1 curve 
·<I> 

a 

::;; 

~ ::: . ~ 

= E-< 

~ c..· 

~ 

1\) 

10,000 

10,000 

U1 1,000 

5. 10 2 3 4 15 • 7 8 2 3 4 15 8 

ELECTRODE INTERVAL- FEET 

7 8 1,000 

Line 9 (G-2) Fond du Lac, Wis. 

Location: 0.35 mi. W. of road· I along E-W 

road, center of sec. 35, T. '16 N., R. 16. E . 

Bearing: P-1 N. 86 ° E. 

Elev.: 861 1 

o- Full cu.rve 

x- P-2 curve 

/]:,.. P-1 cu.rve 
1'\) 

0'1 

Vl 

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u 

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E= 

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t.:l 

= !.'-< 

z 

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= < Q., 

c.. 

< 

100,000 

I 

10,000 

I 

I 

1,000-

5 

2 3 4 15 --

9 

8 

7 

6 

6 

4 

3 

2 

9 

8 

7 

6 

15 

3 

10 4 

6 7 8 9 1 2 3 4 15 

100 

ELECTRODE JN'I'fllV AL- FEET 

6 7 8 9 

Line 10 (G-2) Fond du Lac,JVis. 

Location: 0.35 mi. S. of Rd. N 1 mi. W. of 

Hwy. 41 W. side of sec. 19 T. 16 N., R. 17 E. 

Bearing: P-1 N. 50° W. 

Elev.: 1!141 

0- Full curve 

X - P-2 curve 

A- P-1 curve 
r:n 

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u 

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~ 

~ 

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z 

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........ 

100,000 

I 

10,000 

1,000 

I 

5 

/A 

9 

8 

7 

6 

6 

4 

3 

2 

9 

8 

7 

6 

6 

4 

3 

2 

10 

10 

Line 11 (G-2) Fond du Lac, Wis. 6/4/47 

Location: 0.3 mi. W. of Hwy. 41 on Rd. 000. 

N. line of sec. 9, T. 15 N., R. 17 E. 

Bearing: P-1 N. 85°E .. 

Elev.: 7571 

0- Full curve 

X - P-2 curve 

&. - P-1 curve 

2 3 4 6 6 7 8 ' 100 

ELECTRODE INTERVAL- FEET 
1'\) JOO,OOO 10 

00 9 

8 

7 

6 

5 

4 

3 

I 

2

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> Location: 0.29 mi. E. of Hwy 4.1 on N. lioe E= 10,000 1 

~ 9 sec. 29, T. 16 N., R. 17 E. ~ a: 8 E-< Bearing: P-1 N. 84. 0 z E. t:.J 7 a: 

< Elev.: 788' 0.. 

0.. 6 < 

3 

111- P-1 curve 

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1,000 

5 10. 100 

ELECTB.OOE INTERVAL - FEET 
100,000 - - 9 

a 

7 

6 

5 

4 

3 

2 

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6 

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9 

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z 

w 7 

cc; 

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5 

3 

1 ~ 1,000 2 3 5 10 

• 

- - - . - - - - -

4 6 6 7 ., 100 

ElECTRODE INTERVAL- FEET 

- 10 

5 

4 

3 

2 

Line 13 (G-2) Fond du Lac, Wis. 6/5/47 

Location: 0.35 mi. N. of Hwy. 23 on center line 

sec. 12, T. 16 N., R. 17 E. 

Bearing: P-1 N. 7° E. 

Elev.: 762 1 

0- Full curve 

X - P-2 curve 

A- P-1 curve 

Vl 

6 

:; 

~ ~ 

> 

~ E-o 

z 

ll3 

< 

c.. 

~ 

w 

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100.000 - -

9 

e 

7 

6 

6 

4 

3 

2 

10,000 

9 I 8 

I 8 

I 6 

4 

3 

2 

1,000 J I I I I I I I I I I I I I I I I I I I 'i I I I !PI I I''!" I I !Ill I I~! I I Ill 

5 

l 

10 

X 

A 

! 

- - - - - -

100 

ELECTRODE INTERVAL- FEET 

10 

9 

e 

7 

6 

6 

4 

3 

2 

9 

Line 15 (G-2) Fond du Lac, \Vis. · 6/6/47 

Location: 100.±. yds. IV. of center sec. 33, 

T. 15 N. R. 17 E. 

Dearing: P-1 N. 89° E. 

Elev.: 9261 

o- Full curve 

X- P-2 curve 

A.- P-1 curve 
w 100,000 N 9 

8 

7 

6 

6 

4 

3 

2 

I ~ u 

~ 

cr 

~ 10,000 

~ 9 

I 8 

~ 

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7 

a: 

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r..l 

~ I 6 I:. 

0.. 

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4 

I 

3 

I 

0 

I 2 

A 

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15 100 

Etm"RODE IN"'CRVA.f..- FEET 

2 3 4 15 8 

10 

Line 16 (G-2) Fond du Lac, Wis. 6/6/47 

Location: 0.3 mi. S. of County Hwy FFF in 

sec. 4, T. 14 N., R. 17 E. 

llearing: P-1 N. 0° E. 

Elev.: R42 1 

0 - Full curve 

X - P-2 curve 

2 A - P-1 curve 

l,(l(l() 
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0 == 

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~ 

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z 

t.J 

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w 

w 

100,000 

10,000 

I 

I 

I. 

1,000 ~ 

5 

9 

8 

7 

6 

6 

4 

3 

2 

9 

8 

7 

e 

5 

4 

3 

2 

10 2 3 4 6 8 7 8 100 2 3 4 6 8 7 8 

ELECTRODE INTERVAL- FEET 

10 

2 

Line 17 (G-2) Fond du Lac, Wis. 6/9./47 

Location: 0.3 mi. W. of E. Line on center line 

sec. 17, T. 15 N., R. 17 E. 

Dearing: P-1, N. 90° W. 

Elev.: 7901 

0- Full curve 

X- P-2 curve 

A- P-1 curve 
w. 

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10,000 

1,000 

I 

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a 

7 

6 

5 

4 

3 

2 

9 

a 

7 

6 

5 

4 

3 

2 

2 3 4 

g .. ' .. " 1 "' .. 4 

8 100 

ELECTRODE INTERVAL- FEET 

6 6 7 a 9 

Line 18 (G-2) Fond du Lac, Wis. 

Location: 0.7 mi. S, of county Hwy. on 

W. line sec. 19, T. 15 N., R. 17 F.. 

Bearing: P-1 N. 10° W. 

Elevation: 828!.±. 2 1 

o- Full curve 

X- P-2 curve 

&.- P-1 curve 
100,000 10 

9 9 

e e 

7 7 

6 6 

5 5 

4 4 

3 3 

21 I I I I I I IIi I· Ill' I' Ill I I I I 1111111111111111111111111111111111111111111111111111111111111111111111111111 I I I I I 1111111111111!1 I I I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII:IIIIIIIIIUI2 

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> 

E= 1o;ooo Location: 1500 ft. N.W. of overpass on 5!3 

en C. & N.W. Ry. NWli sec. 26, T. 15 N., w 9 r::c R. 17 E. 

E- 6 z 

w 

e= 

< 7 Dearing: Not taken. 

c.. 

c.. 6 FHIHliTHfll-llllHBfHllfiiRtHIHIFFIHHHfff- r=r r-F I I I I I 1!1 I I -, ff!TJ I tlJ±HHJiiillllFIIHIIlllflllllllfHflfffiH±ItllttttfH < Elev.: Not taken. 

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Given up due to a buried conductor 

along R.R. track. 

4 4 

3 3 

o- Full curve 

0 2 

X- P-2 curve 

8.- P-1 curve 

I -~![llllilll~-1111111111111111111111111111111111111111- X 

~. 1,000 

I 

If:. ;O fA 2 3 4 5 6 T 8 100 2 3 4 5 8 T 8 

ELECTROOE INTERVAL- FEET 
w 

0"1 

~ u 

:::;; 

~ > E: 

~ w 

c:: 

~ w 

~ 

~ 

"100,000 

10,000 

1,000 

9 

8 

7 

6 

6 

4 

3 

2 

9 

8 

7 

6 

0 4 

2 

10 4 100 8 T 8 

ElECTRODE INTERVAL- Ff.ET 

Line 20 (G-2) Fond du Lac, Wis. 6/10/47 

Location: County Hwy. D.,~ mi. N. of Couaty 

Hwy. FFF., sec. 6, T. 14 N., R. 17 F.. 

Bearing: Il-1 N. 25 ° E. 

Elev.: 840' 

0- Full curve 

X - P-2 curve 

A- P-1 curve 
Vl 

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u 

:;: 

c:: 

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F= 

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tJ 

c::: 

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0.. 

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w 

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100,000 

I 

I 

10,000 

1 

0 

I 

A 

X 

I 

1,000 

5 

10 

9 9 

e e 

7 7 

6 6 

5 5 

4 4 

3 3 

2

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~ : 

Location: ~mi. W. of E. line and 0.3 mi. 

N. of S. line of sec. 29, T. 10 N., R. 1~ E. 

Bearing: P-1 N. 3 ° W. 

Elev.: 1026' 

5 5 

4 4 

3 3 o- Full curve 

X- P-2 curve 

2 , 1 2 A- P-1 curve 

10 2 3 4 15 8 7 8 100 

ELECTRODE iNTERVAL- FEET