@@@IMAGE=(NOAA3L,1,1),FORMS=(CALCOV),FONTS=(NADCOV),END;





                          STATE OF TEXAS
 @@@FORMS=NONE,FONTS=(L0112C),END;
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                                                               CONTENTS



           BASE LINE DESIGNATION                      STATE                    COUNTY                    QUAD


           AMARILLO (1988)                            TEXAS                    POTTER                    N351013
           AMARILLO (1990 REMEASURED)                 TEXAS                    POTTER                    N351013
           FT. WORTH (1976)                           TEXAS                    TARRANT                   N320971
           FT. WORTH (1986)                           TEXAS                    TARRANT                   N320971
           FT. WORTH (1990 REMEASURED)                TEXAS                    TARRANT                   N320971
           HOUSTON (1988)                             TEXAS                    FORT BEND                 N290954
           HOUSTON (1990 REMEASURED)                  TEXAS                    FORT BEND                 N290954
           LAMPASAS (1982)                            TEXAS                    LAMPASAS                  N310982
           LAMPASAS CBL (1990 REMEASURED)             TEXAS                    LAMPASAS                  N310982
           MIDLAND (1986)                             TEXAS                    MIDLAND                   N311014
           MIDLAND (1990 REMEASURED)                  TEXAS                    MIDLAND                   N311014
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  US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD: N351013
  NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:  AMARILLO                  TEXAS
  ROCKVILLE MD 20852                                PROJECT ACCESSION NUMBER:  G15730                 POTTER COUNTY
                                                    NEAREST TOWN:  AMARILLO

                                                LIST OF ADJUSTED DISTANCES  (FEBRUARY 4, 1988)

                                                                                      ADJ. DIST.(M)   ADJ. DIST.(M)    STD.
    FROM STATION                    ELEV.(M)  TO STATION                      ELEV.(M)  HORIZONTAL     MARK - MARK   ERROR(MM)

    0                                 30.480  151                              30.531      150.3416       150.3416       0.3
    0                                 30.480  430                              30.383      430.2956       430.2956       0.4
    0                                 30.480  1400                             29.369     1400.3935      1400.3939       0.5

    151                               30.531  430                              30.383      279.9540       279.9541       0.3
    151                               30.531  1400                             29.369     1250.0519      1250.0524       0.4

    430                               30.383  1400                             29.369      970.0979       970.0984       0.3



 A TAPE CALIBRATION MUNUMENT WAS SET AT 100 FOOT POINT OF THE BASE LINE.  REDUCED DISTANCE IS 100.00 FT.

 DESCRIPTION OF: AMARILLO BASE LINE
 YEAR MEASURED:  1988
 CHIEF OF PARTY: MTL

 THIS BASE LINE IS LOCATED 15.1 KM (9.4 MI) EAST INTERSTATE 27, 16.0 KM (10.0 MI) EAST OF AMARILLO, 1.9 KM (1.2 MI) NORTH OF
 INTERSTATE 40, AT THE  SOUTHEAST CORNER OF THE AMARILLO INTERNATIONAL AIRPORT AND SOUTH OF THE TEXAS STATE TECHNICAL INSTITUTE.

 TO REACH THE BASE LINE FROM THE JUNCTION OF INTERSTATE 40 AND INTERSTATE 27, GO EAST ON INTERSTATE 40 FOR 15.1 KM (9.4 MI) TO EXIT
 80 TEXAS  STATE TECHNICAL INSTITUTE, TAKE EXIT 80 TO STATE LOOP 288 JUNCTION AND TURN LEFT AND GO NORTH ON STATE LOOP 288 (B AVE)
 UNDER INTERSTATE 40 FOR 1.9 KM  (1.2 MI) TO CAUTION LIGHT AND AN INTERSECTION, WEST NE 8TH STREET. TURN LEFT AND GO WEST ON WEST NE
 8TH FOR 0.08 KM (0.05 MI) TO A METAL GATE ON THE  LEFT AND THE ENTRANCE TO THE BASE LINE. TURN LEFT AND GO SOUTH THROUGH THE GATE
 THE GATE FOR 28 METERS (92 FT) TO THE 0 METER POINT.

 THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT AT THE NORTH END. THIS BASE LINE IS A FOUR POINT BASE CONSISTING OF THE
 0, 151, 430, AND THE 1400 METER POINTS. ALL POINTS ARE SET ON A LINE WHICH RUNS PARALLEL TO STATE  LOOP 288. THERE IS ALSO A 100
 FOOT TAPING STATION LOCATED AT A RIGHT ANGLE AND WEST OF THE 0 METER POINT AND BASE LINE.

 THE 0 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "0 1988", SET IN THE TOP OF A 30 CM (11.8 IN) DIAMETER
 CONCRETE POST PRO-JECTING 10 CM (4 IN) ABOVE THE GROUND, 1.0 METERS (3.3 FT) EAST OF A WITNESS POST, 28.0 METERS (91.9 FT) SOUTH OF
 A METAL GATE, 36.7 METERS (120.4 FT) WEST OF A WIRE FENCE, AND 52.4 METERS (171.9 FT) WEST OF THE CENTERLINE OF STATE LOOP 288.

 THE 151 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "151 1988", SET IN THE TOP OF A 30 CM (11.8 IN) DIAMETER
 CONCRETE POST PROJECTING 10 CM (4 IN) ABOVE THE GROUND, 1.0 METERS (3.3 FT) EAST OF A WITNESS  POST, 37.7 METERS (123.7 FT) WEST OF
 A WIRE FENCE, AND 53.6 METERS (175.9 FT)  WEST OF THE CENTERLINE OF STATE LOOP 288.

 THE 430 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "430 1988", 1.0 METERS (3.3 FT) EAST OF A WITNESS POST,
 39.7 METERS (130.2 FT) WEST OF A WIRE FENCE, AND 55.7 METERS (182.7 FT) WEST OF THE CENTERLINE OF  STATE LOOP 288.

 THE 1400 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "1400 1988", SET IN THE TOP OF A 30 CM (11.8 IN) DIAMETER
 CONCRETE POST PROJECTING 10 CM (4 IN) ABOVE THE GROUND, 1.0 METERS (3.3 FT) EAST OF A WITNESS  POST, 21.9 METERS (71.8 FT) WEST OF
 A WIRE FENCE, AND 44.9 METERS (147.3 FT)  WEST OF THE CENTERLINE OF STATE LOOP 288.

 USER NOTES: A KEY IS NEEDED TO UNLOCK THE ENTRANCE GATE, WHICH MAY BE OBTAINED FROM THE CITY ENGINEER'S OFFICE. CARE SHOULD BE TAKEN
 TO PLUMB  OVER POINTS. ALL POINT ELEVATIONS ARE FOR BASE LINE USE ONLY.

 THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE TEXAS SURVEYORS ASSOCIATION, PANHANDLE CHAPTER NO. 16, AND THE CITY OF
 AMARILLO. FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY ENGINEER, CITY OF AMARILLO, 509 EAST  7TH AVENUE, AMARILLO, TEXAS,
 79186, TELEPHONE (806) 378-4227.
 

1US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD: N351013
 NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:  AMARILLO CBL              TEXAS
 ROCKVILLE MD 20852 - JANUARY 7, 1994              PROJECT ACCESSION NUMBER:  15730                  POTTER COUNTY
                                                   NEAREST TOWN:  AMARILLO

                                                LIST OF ADJUSTED DISTANCES  (MARCH 30, 1990)

                                                                                      ADJ. DIST.(M)   ADJ. DIST.(M)      STD.
    FROM STATION                    ELEV.(M)  TO STATION                      ELEV.(M)   HORIZONTAL     MARK - MARK   ERROR(MM)

    0                                 30.480  151                               30.531      150.3412       150.3412       0.3
    0                                 30.480  430                               30.383      430.2963       430.2963       0.4
    0                                 30.480  1400                              29.369     1400.3928      1400.3933       0.6

    151                               30.531  430                               30.383      279.9551       279.9552       0.3
    151                               30.531  1400                              29.369     1250.0517      1250.0522       0.4

    430                               30.383  1400                              29.369      970.0966       970.0971       0.3

 A TAPE CALIBRATION MONUMENT WAS SET AT THE 100 FOOT POINT OF THE BASE LINE.  THE REDUCED MARK TO MARK DISTANCE IS 100.OO FT.

 DESCRIPTION OF: AMARILLO BASE LINE
 YEAR MEASURED: 1988
 YEAR REMEASURED: 1990
 CHIEF OF PARTY: LPB

 THIS BASE LINE IS LOCATED 15.1 KM (9.4 MI) EAST OF INTERSTATE 27, 16.0 KM (10.0 MI) EAST OF AMARILLO, 1.9 KM (1.2 MI) NORTH OF
 INTERSTATE 40, AT THE  SOUTHEAST CORNER OF THE AMARILLO INTERNATIONAL AIRPORT AND SOUTH OF THE TEXAS STATE TECHNICAL INSTITUTE.

 TO REACH THE BASE LINE FROM THE JUNCTION OF INTERSTATE 40 AND INTERSTATE 27, GO EAST ON INTERSTATE 40 FOR 15.1 KM (9.4 MI) TO EXIT
 80 TEXAS STATE TECHNICAL INSTITUTE, TAKE EXIT 80 TO STATE LOOP 288 JUNCTION AND TURN LEFT AND GO NORTH ON STATE LOOP 288 (B AVE)
 UNDER INTERSTATE 40 FOR 1.9 KM (1.2 MI) TO CAUTION LIGHT AND AN INTERSECTION, WEST NE 8TH STREET. TURN LEFT AND GO WEST ON WEST NE
 8TH FOR 0.08 KM (0.05 MI) TO A METAL GATE ON THE LEFT AND THE ENTRANCE TO THE BASE LINE. TURN LEFT AND GO SOUTH THROUGH THE GATE FOR
 28 METERS (92 FT) TO THE 0 METER POINT.

 THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT AT THE NORTH END. THIS BASE LINE IS A FOUR POINT BASE CONSISTING OF THE
 0, 151, 430, AND THE 1400 METER POINTS. ALL POINTS ARE SET ON A LINE WHICH RUNS PARALLEL TO STATE  LOOP 288. THERE IS ALSO A 100
 FOOT TAPING STATION LOCATED AT A RIGHT ANGLE AND WEST OF THE 0 METER POINT AND BASE LINE.

 THE 0 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "0 1988", SET IN THE TOP OF A 30 CM (11.8 IN) DIAMETER
 CONCRETE POST PROJECTING 10 CM (4 IN) ABOVE THE GROUND, 1.0 METERS (3.3 FT) EAST OF A WITNESS POST, 28.0 METERS (91.9 FT) SOUTH OF A
 METAL GATE, 36.7 METERS (120.4 FT) WEST OF A WIRE FENCE, AND 52.4 METERS (171.9 FT) WEST OF THE CENTERLINE OF STATE LOOP 288.

 THE 151 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "151 1988", SET IN THE TOP OF A 30 CM (11.8 IN) DIAMETER
 CONCRETE POST PROJECTING 10 CM (4 IN) ABOVE THE GROUND, 1.0 METERS (3.3 FT) EAST OF A WITNESS POST, 37.7 METERS (123.7 FT) WEST OF A
 WIRE FENCE, AND 53.6 METERS (175.9 FT) WEST OF THE CENTERLINE OF STATE LOOP 288.

 THE 430 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "430 1988", 1.0 METERS (3.3 FT) EAST OF A WITNESS POST,
 39.7 METERS (130.2 FT) WEST OF A WIRE FENCE, AND 55.7 METERS (182.7 FT) WEST OF THE CENTERLINE OF STATE LOOP 288.

 THE 1400 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISC STAMPED "1400 1988", SET IN THE TOP OF A 30 CM (11.8 IN) DIAMETER
 CONCRETE POST PROJECTING 10 CM (4 IN) ABOVE THE GROUND, 1.0 METERS (3.3 FT) EAST OF A WITNESS POST, 21.9 METERS (71.8 FT) WEST OF A

 THE 100-FOOT TAPE CALIBRATION STATION WAS REMEASURED BY EDM METHOD AND FOUND TO BE 100.00 FEET AT THIS TIME.

 USER NOTES: A KEY IS NEEDED TO UNLOCK THE ENTRANCE GATE, WHICH MAY BE OBTAINED FROM THE CITY ENGINEER'S OFFICE. CARE SHOULD BE TAKEN
 TO PLUMB OVER POINTS. ALL POINT ELEVATIONS ARE FOR BASE LINE USE ONLY.

 THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE TEXAS SURVEYORS ASSOCIATION, PANHANDLE CHAPTER NO. 16, AND THE CITY OF
 AMARILLO. FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY ENGINEER, CITY OF AMARILLO, 509 EAST 7TH AVENUE, AMARILLO, TEXAS, 79186,
 TELEPHONE (806) 378-4227.

 REV. 1/7/94
1

  US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD:  N320971
  NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:  FT. WORTH                 TEXAS
  ROCKVILLE MD 20852 - OCTOBER 29, 1986             PROJECT ACCESSION NUMBER:  G15730                 TARRANT COUNTY


                                                LIST OF ADJUSTED DISTANCES (JANUARY 30, 1980)

                                                                                       ADJ. DIST.(M)  ADJ. DIST.(M)    STD.
      FROM STATION                  ELEV.(M)   TO STATION                     ELEV.(M)   HORIZONTAL     MARK - MARK   ERROR(MM)

     CALIBRATION BASE 00.0          165.02    CALIBRATION BASE 150            162.33       149.9738       149.9979       0.5
     CALIBRATION BASE 00.0          165.02    CALIBRATION BASE 800            161.28       799.9672       799.9759       1.0
     CALIBRATION BASE 00.0          165.02    CALIBRATION BASE 1400           162.32      1429.1073      1429.1098       1.4

     CALIBRATION BASE 150           162.33    CALIBRATION BASE 800            161.28       649.9932       649.9941       0.8
     CALIBRATION BASE 150           162.33    CALIBRATION BASE 1400           162.32      1279.1332      1279.1332       1.2

     CALIBRATION BASE 800           161.28    CALIBRATION BASE 1400           161.32       629.1398       629.1407       0.8


      DESCRIPTION OF FT. WORTH BASE LINE
      YEAR MEASURED:  1976
      CHIEF OF PARTY:  MDC

      THE BASE LINE IS LOCATED IN THE NORTHWEST SECTION OF FT. WORTH, ALONG THE WEST FORK OF THE TRINITY RIVER, ON THE NORTH
      SIDE OF THE RIVER LEVEE, BETWEEN THE RIVER AND THE LEVEE AND ON PROPERTY OWNED BY THE CITY WATER DEPARTMENT.

      TO REACH THE BASE LINE FROM THE JUNCTION OF INTERSTATES 20 AND 35 W, GO WEST ON I-20 FOR 2.7 MILES TO UNIVERSITY DRIVE.
      TURN RIGHT AND GO NORTH ON UNIVERSITY DRIVE FOR 2.0 MILES TO A LEVEE AND A STREET ON THE RIGHT JUST BEFORE CROSSING A
      BRIDGE OVER THE WEST FORK OF TRINITY RIVER.  TURN RIGHT ON ROCKWOOD PARK DRIVE AND GO NORTHERLY FOR 0.05 MILE TO THE 0
      METER POINT ON THE RIGHT.  (ROCKWOOD PARK DRIVE VEERS OFF OF UNIVERSITY DRIVE AND CIRCLES UNDER UNIVERSITY DRIVE AND GOES
      WEST.)

      THE 0 METER POINT IS A STANDARD NGS TRIANGULATION STATION DISK SET IN THE TOP OF A ROUND CONCRETE MONUMENT FLUSH WITH THE
      GROUND AND IS STAMPED CALIBRATION BASE 00.0 1976.  IT IS 130 FEET SOUTH OF THE SOUTH BANK OF THE RIVER.  110 FEET
      SOUTHWEST OF A POWER POLE, 80 FEET NORTHWEST OF THE CENTER OF THE LEVEE AND 32 FEET EAST OF THE CENTER OF ROCKWOOD PARK
      DRIVE.

      THE BASE LINE IS AN EAST-WEST LINE WITH THE 0 METER POINT ON THE WEST END.  IT CONSISTS OF THE 0, 150, 800, AND 1400 METER
      POINTS WITH A MONUMENT AT 100 FEET FOR TAPE CALIBRATION.  THE FROM AND TO STATION NAMES (THE METER POINT DESIGNATIONS)
      WERE PREASSIGNED AND DO NOT AGREE WITH THE MEASURED DISTANCES.  ALL THE DISKS ARE STANDARD NGS TRIANGULATION STATION DISKS
      SET IN THE TOP OF ROUND CONCRETE MONUMENTS FLUSH WITH THE GROUND AND HAVE AN UNDERGROUND DISK ABOUT 42 INCHES BELOW THE
      GROUND.  ALL THE DISKS ARE STAMPED CALIBRATION BASE, LENGTH DESIGNATION, AND 1976 ON THEM WITH THE EXCEPTION OF THE 100
      FOOT POINT WHICH HAS NO STAMPING ON IT.

1US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD: N320971
 NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:   FT. WORTH                TEXAS
 ROCKVILLE MD 20852 - NOVEMBER 24, 1987            PROJECT ACCESSION NUMBER:  G15730                 TARRANT COUNTY
                                                   NEAREST TOWN  FT. WORTH

                                                LIST OF ADJUSTED DISTANCES (FEBRUARY 10, 1987)

                                                                                      ADJ. DIST.(M)   ADJ. DIST.(M)    STD.
    FROM STATION                    ELEV.(M)  TO STATION                      ELEV.(M)  HORIZONTAL     MARK - MARK   ERROR(MM)

       0                             165.020  150                             162.347      149.9624       149.9862       0.0
       0                             165.020  800                             161.235      799.9614       799.9703       0.2
       0                             165.020 1430                             162.304     1429.0975      1429.1001       0.3

     150                             162.347  800                             161.235      649.9989       649.9998       0.2
     150                             162.347 1430                             162.304     1279.1349      1279.1349       0.3

     800                             161.235 1430                             162.304      629.1359       629.1368       0.2

 A TAPE CALIBRATION MONUMENT WAS SET AT 100 FOOT POINT OF THE BASE LINE.  REDUCED DISTANCE IS  99.949 FT. CORRECTED 11/24/87.

 DESCRIPTION OF FT. WORTH BASE LINE
 YEAR MEASURED:  1986
 CHIEF OF PARTY:  MTL

 THIS BASE LINE IS LOCATED IN THE NORTHWEST SECTION OF FT. WORTH, ALONG THE WEST FORK OF THE TRINITY RIVER, ON THE NORTH SIDE OF THE
 RIVER LEVEE, BETWEEN THE RIVER AND LEVEE, ON PROPERTY OWNED BY THE CITY WATER DEPARTMENT.

 TO REACH THIS BASE LINE FROM THE JUNCTION OF INTERSTATES 20 AND 35W, GO WEST ON INTERSTATE 20 FOR 4.32 KM (2.7 MI) TO UNIVERSITY
 DRIVE. TURN RIGHT AND GO NORTH ON UNIVERSITY DRIVE FOR 3.2 KM (2.0 MI) TO A LEVEE AND A STREET ON THE RIGHT JUST BEFORE CROSSING A
 BRIDGE OVER THE WEST FORK OF THE TRINITY RIVER.  TURN RIGHT ON ROCKWOOD PARK DRIVE AND GO NORTHERLY FOR 0.08 KM (0.05 MI) TO THE 0
 METER POINT ON THE RIGHT (ROCKWOOD PARK DRIVE VEERS OFF OF UNIVERSITY DRIVE AND CIRCLES UNDER UNIVERSITY DRIVE AND GOES WEST.).

 THIS BASE LINE IS A WEST-EAST LINE WITH THE 0 METER POINT ON THE WEST END.  IT CONSISTS OF MARKS AT THE 0, 150, 800 AND 1429 METER
 POINTS, PLUS A MONUMENT AT THE 100 FOOT POINT FOR TAPE CALIBRATION.  ALL DISKS ARE STANDARD NGS TRIANGULATION STATION DISKS SET INTO
 THE TOP OF ROUND CONCRETE MONUMENTS MEASURING 30.0 CM (12.0 IN) IN DIAMETER.

 THE 0 METER POINT IS STAMPED "CALIBRATION BASE 0 1976" AND IS LOCATED 9.7 M (32.0 FT) EAST OF THE CENTERLINE OF ROCKWOOD PARK DRIVE,
 5.5 M (18.0 FT) WEST OF THE WEST EDGE OF A CONCRETE SIDEWALK AND 0.64 M (2.1 FT) NORTH OF A METAL WITNESS POST.  THE 150 METER POINT
 IS STAMPED "CALIBRATION BASE 150 1976" AND IS LOCATED 150.0 M (492.0 FT) EAST OF THE 0 METER POINT AND 7.8 M (26.1 FT) SOUTH OF THE
 SOUTH EDGE OF A CONCRETE SIDEWALK.  THE 800 METER POINT IS STAMPED "CALIBRATION BASE 800 1976" AND IS LOCATED 8.6 M (28.0 FT) NORTH
 OF THE CENTERLINE OF A GRAVEL ROAD, 5.3 M (17.4 FT) SOUTH OF THE SOUTH EDGE OF A CONCRETE SIDEWALK AND 0.6 M (2.0 FT) SOUTH OF A
 METAL WITNESS POST. THE 1429 METER POINT IS STAMPED "CALIBRATION BASE 1400 1976" AND IS LOCATED 27.1 M (89.0 FT) SOUTHEAST OF A 1
 METER BY 2 METER CONCRETE ACCESS PAD, 15.9 (52.0 FT) WEST OF THE CENTER OF A RAILROAD OVERPASS, 2.65 M (8.7 FT) SOUTH OF THE SOUTH
 EDGE OF A CONCRETE SIDEWALK AND 0.6 M (2.0 FT) SOUTH OF A METAL WITNESS POST.

 FOR FURTHER INFORMATION CONCERNING THIS BASE LINE CONTACT MR. JOHN NALL, BOUNDRY MARK INC., 1140 WEST MAIN, ARLINGTON, TEXAS 76013,
 TELEPHONE NUMBER (817) 860-0165.

 DESCRIPTION OF FT. WORTH BASE LINE
 YEAR MEASURED:  1986
 YEAR RECOVERED: 1990
 CHIEF OF PARTY: LPB

 THIS BASE LINE IS LOCATED IN THE NORTHWEST SECTION OF FT. WORTH, ALONG THE WEST FORK OF THE TRINITY RIVER, ON THE NORTH SIDE OF THE
 RIVER LEVEE, BETWEEN THE RIVER AND LEVEE, ON PROPERTY OWNED BY THE CITY WATER DEPARTMENT.

 TO REACH THIS BASE LINE FROM THE JUNCTION OF INTERSTATES 30 AND 35W, GO WEST ON INTERSTATE 30 FOR 4.32 KM (2.7 MI) TO UNIVERSITY
 DRIVE. TURN RIGHT AND GO NORTH ON UNIVERSITY DRIVE FOR 3.2 KM (2.0 MI) TO A LEVEE AND A STREET ON THE RIGHT JUST BEFORE CROSSING A
 BRIDGE OVER THE WEST FORK OF THE TRINITY RIVER.  TURN RIGHT ON ROCKWOOD PARK DRIVE AND GO NORTHERLY FOR 0.08 KM (0.05 MI) TO THE 0
 METER POINT ON THE RIGHT (ROCKWOOD PARK DRIVE VEERS OFF OF UNIVERSITY DRIVE AND CIRCLES UNDER UNIVERSITY DRIVE AND GOES WEST.).

1THIS BASE LINE IS A WEST-EAST LINE WITH THE 0 METER POINT ON THE WEST END.  IT CONSISTS OF MARKS AT THE 0, 150, 800 AND 1429 METER
 POINTS, PLUS A MONUMENT AT THE 100 FOOT POINT FOR TAPE CALIBRATION.  ALL DISKS ARE STANDARD NGS TRIANGULATION STATION DISKS SET INTO
 THE TOP OF ROUND CONCRETE MONUMENTS MEASURING 30.0 CM (12.0 IN) IN DIAMETER.

 THE 0 METER POINT IS STAMPED "CALIBRATION BASE 0 1976" AND IS LOCATED 9.7 M (32.0 FT) EAST OF THE CENTERLINE OF ROCKWOOD PARK DRIVE,
 5.5 M (18.0 FT) WEST OF THE WEST EDGE OF A CONCRETE SIDEWALK AND 0.64 M (2.1 FT) NORTH OF A METAL WITNESS POST.  THE 150 METER POINT
 IS STAMPED "CALIBRATION BASE 150 1976" AND IS LOCATED 150.0 M (492.0 FT) EAST OF THE 0 METER POINT AND 7.8 M (26.1 FT) SOUTH OF THE
 SOUTH EDGE OF A CONCRETE SIDEWALK.  THE 800 METER POINT IS STAMPED "CALIBRATION BASE 800 1976" AND IS LOCATED 8.6 M (28.0 FT) NORTH
 OF THE CENTERLINE OF A GRAVEL ROAD, 5.3 M (17.4 FT) SOUTH OF THE SOUTH EDGE OF A CONCRETE SIDEWALK AND 0.6 M (2.0 FT) SOUTH OF A
 METAL WITNESS POST. THE 1429 METER POINT IS STAMPED "CALIBRATION BASE 1400 1976" AND IS LOCATED 27.1 M (89.0 FT) SOUTHEAST OF A 1
 METER BY 2 METER CONCRETE ACCESS PAD, 15.9 (52.0 FT) WEST OF THE CENTER OF A RAILROAD OVERPASS, 2.65 M (8.7 FT) SOUTH OF THE SOUTH
 EDGE OF A CONCRETE SIDEWALK AND 0.6 M (2.0 FT) SOUTH OF A METAL WITNESS POST.

 FOR FURTHER INFORMATION CONCERNING THIS BASE LINE CONTACT MR. JOHN NALL, BOUNDRY MARK INC., 107 DIVISION CT, ARLINGTON, TEXAS 76012,
 TELEPHONE NUMBER (817) 860-0165.
 
1 US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD: N290954
  NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:  HOUSTON                   TEXAS
  ROCKVILLE MD 20852                                PROJECT ACCESSION NUMBER:  15730                  FORT BEND COUNTY
                                                    NEAREST TOWN:  STAFFORD

                                                LIST OF ADJUSTED DISTANCES  (JANUARY 6, 1989)

                                                                                      ADJ. DIST.(M)   ADJ. DIST.(M)      STD.
    FROM STATION                    ELEV.(M)  TO STATION                      ELEV.(M)   HORIZONTAL     MARK - MARK   ERROR(MM)

    0                                 25.300  150                               25.043      150.0184       150.0186       0.1
    0                                 25.300  430                               25.070      429.9897       429.9897       0.6
    0                                 25.300  1350                              26.339     1350.0023      1350.0027       0.8

    150                               25.043  430                               25.070      279.9713       279.9713       0.6
    150                               25.043  1350                              26.339     1199.9839      1199.9846       0.8

    430                               25.070  1350                              26.339      920.0126       920.0135       0.6

 A TAPE CALIBRATION MONUMENT WAS SET AT THE 100 FOOT POINT OF THE BASE LINE.  THE REDUCED MARK TO MARK DISTANCE IS 100.00 FT.

 DESCRIPTION OF HOUSTON CBL
 YEAR MEASURED: 1988
 CHIEF OF PARTY: MTL

 THE BASE LINE IS LOCATED ABOUT 16.0 KM (10.0 MI) SOUTHWEST OF HOUSTON, ABOUT 4.8 KM (3.0 MI) WEST OF SUGARLAND, ABOUT 1.3 KM (0.8
 MI) WEST OF THE  INTERSECTION OF US HIGHWAY 90 ALTERNATE AND STATE HIGHWAY 6, AT THE HOUSTON  HULL AIRPORT.

 TO REACH THE BASE LINE FROM THE INTERSECTION OF US HIGHWAY 59 AND STATE HIGHWAY 6, SOUTHWEST OF HOUSTON, GO NORTHWEST ON HIGHWAY 6
 FOR 3.1 KM (1.9 MI) TO THE INTERSECTION OF US HIGHWAY 90 ALTERNATE. TURN LEFT AND GO WEST ON US HIGHWAY 90 ALT FOR 1.2 KM (0.75 MI)
 TO A ROAD RIGHT. TURN RIGHT AND GO  NORTH FOR 0.1 KM (0.05 MI) ACROSS THE RAILROAD TRACKS, AND THROUGH A PRISON GATE, TO A DIRT ROAD
 RIGHT. TURN RIGHT AND GO EAST FOR 0.6 KM (0.35 MI) TO A DIRT TRACK ROAD LEFT, JUST PAST THE END OF THE TAXIWAY. TURN LEFT AND GO
 NORTH FOR 0.1 KM (0.05 MI) TO THE 0 METER POINT ON THE LEFT. NOTE: TO REACH THE 150 AND 430 METER POINTS CONTINUE NORTH ON THE DIRT
 TRACK ROAD, BUT TO REACH THE 1350 POINT YOU MUST GO BACK OUT TO THE INTERSECTION OF US HIGHWAY 90 ALT AND STATE HIGHWAY 6. THEN, GO
 NORTH ON STATE HIGHWAY 6 FOR 1.7 KM (1.05 MI) TO THE AIRPORT ENTRANCE ON THE LEFT. TURN LEFT AND GO WEST ON ENTRANCE ROAD FOR 0.3 KM
 (0.2 MI) TO THE GUARD SHACK AND A NARROW PAVED ROAD LEFT. TURN LEFT AND GO SOUTH ON THE PAVED ROAD FOR 0.1 KM (0.05 MI) TO A CURVE
 RIGHT. FOLLOW THE CURVE TO THE RIGHT AND GO WEST FOR 0.2 KM (0.1 MI) TO A CURVE LEFT. FOLLOW THE CURVE TO THE LEFT AND GO SOUTHWEST
 ON THE PAVED ROAD FOR 0.4 KM (0.26 MI) TO THE 1350 METER POINT ON THE LEFT.

 THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT ON THE SOUTH END. IT CONSISTS OF THE 0, 150, 430, AND 1350 METER POINTS.
 THERE IS ALSO A  DISK SET AT 100 FEET NORTH OF THE 0 METER POINT TO BE USED FOR TAPE CALIBRATION. IT IS SET ALONG THE EAST SIDE OF
 THE MAIN NORTH-SOUTH TAXIWAY. ALL MARKS ARE WITNESSED BY 3 SHORT FIBERGLASS POSTS.

 THE 0 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "0 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30 CM
 (12 IN) IN DIAMETER FLUSH WITH THE GROUND, 34.7 M (113.8 FT) NORTH OF THE SOUTH END OF THE TAXIWAY, 5.0 M (16.4 FT) WEST OF THE WEST
 EDGE OF A CULTIVATED FIELD, 4.5 M (14.8 FT)  EAST OF THE EAST EDGE OF THE TAXIWAY, AND 1.4 M (4.6 FT) EAST OF A BLUE, TAXIWAY LIGHT.

 THE 150 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "150 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30
 CM (12 IN) IN DIA-METER FLUSH WITH THE GROUND, 6.1 M (20.0 FT) WEST OF THE WEST EDGE OF A CULTIVATED FIELD, 5.7 M (18.7 FT) EAST OF
 THE EAST EDGE OF THE TAXIWAY, AND 2.7 M (8.9 FT) EAST OF A BLUE, TAXIWAY LIGHT.

 THE 430 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "430 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30
 CM (12 IN) DIAMETER  FLUSH WITH THE GROUND, 8.7 M (28.5 FT) SOUTHEAST OF A BLUE, TAXIWAY LIGHT, 8.0 M (26.2 FT) EAST OF THE EAST
 EDGE OF THE TAXIWAY, AND 5.8 M (19.0 FT) WEST OF THE WEST EDGE OF A CULTIVATED FIELD.

 THE 1350 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "1350 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30
 CM (12 IN) IN DIAMETER RECESSED 0.1 M (0.3 FT) BELOW THE GROUND, 15.2 M (49.9 FT) EAST OF THE EAST EDGE OF THE TAXIWAY, 12.2 M (40.0
 FT) EAST OF A BLUE, TAXIWAY LIGHT, 12.0 M (39.4 FT) SOUTH OF THE APPROXIMATE CENTER OF A DRAINAGE DITCH, AND 4.3 M (14.1 FT) EAST OF
 THE CENTERLINE OF AN ASPHALT ROAD.

 THE 100-FOOT POINT IS A STANDARD NGS CALIBRATION BASE LINE TAPING DISK STAMPED "100 FT 1988" SET INTO THE TOP OF A ROUND CONCRETE
 POST 30 CM (12 IN) IN DIAMETER FLUSH WITH THE GROUND, 30.5 M (100 FT) NORTH OF THE 0 METER POINT, 6.0 M (19.7 FT) WEST OF THE WEST
 EDGE OF A CULTIVATED FIELD, 4.7 M (15.4 FT)  EAST OF THE EAST EDGE OF THE TAXIWAY, AND 4.6 M (15.1 FT) SOUTHEAST OF A  BLUE, TAXIWAY
 LIGHT.

1USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY. FOR PERMISSION TO ENTER THE
 AIRPORT GROUNDS PLEASE CONTACT DON HULL, OWNER, OR JOHN HULL, MGR, AT HOUSTON HULL AIRPORT, 12888 HWY.6, SOUTH SUGAR LAND, TEXAS,
 77478. TELEPHONE (713) 491-2101. ALSO, THE PRISON FARM SOUTHWEST OF THE AIRPORT SHOULD BE INFORMED OF YOUR ACTIVITIES. CONTACT THE
 JESTER CENTRAL UNIT, RADIO PICKET, AT (713) 491-2146.

 THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE TEXAS SOCIETY OF PROFESSIONAL SURVEYORS. FOR MORE INFORMATION PLEASE CONTACT
 MR. PAUL  KWAN AT LANDTECH CONSULTANTS, 2627 NORTH LOOP WEST, SUITE 224, HOUSTON, TEXAS, 77008. TELEPHONE (713) 861-7068.

1US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD: N290954
 NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:  HOUSTON                   TEXAS
 ROCKVILLE MD 20852                                PROJECT ACCESSION NUMBER:  15730                  FORT BEND COUNTY
                                                   NEAREST TOWN:  STAFFORD

                                                LIST OF ADJUSTED DISTANCES (MARCH 7, 1990)

                                                                                      ADJ. DIST.(M)   ADJ. DIST.(M)      STD.
    FROM STATION                    ELEV.(M)  TO STATION                      ELEV.(M)   HORIZONTAL     MARK - MARK   ERROR(MM)

    0                                 25.300  150                               25.043      150.0150       150.0153       0.1
    0                                 25.300  430                               25.070      429.9860       429.9860       0.3
    0                                 25.300  1350                              26.339     1349.9974      1349.9978       0.5

    150                               25.043  430                               25.070      279.9709       279.9709       0.3
    150                               25.043  1350                              26.339     1199.9823      1199.9830       0.4

    430                               25.070  1350                              26.339      920.0113       920.0122       0.3

 A TAPE CALIBRATION MONUMENT WAS SET AT THE 100 FOOT POINT OF THE BASE LINE.  THE REDUCED MARK TO MARK DISTANCE IS 100.00 FT.

 THIS CALIBRATION BASE LINE WAS READJUSTED ON MARCH 7, 1990.  THE ORIGINAL ADJUSTMENT (DATED JANUARY 6, 1989) WAS MADE USING
 INCORRECTLY CALIBRATED INVAR TAPES.

 DESCRIPTION OF: HOUSTON BASE LINE
 YEAR MEASURED: 1988
 CHIEF OF PARTY: MTL

 THE BASE LINE IS LOCATED ABOUT 16.0 KM (10.0 MI) SOUTHWEST OF HOUSTON, ABOUT 4.8 KM (3.0 MI) WEST OF SUGARLAND, ABOUT 1.3 KM (0.8
 MI) WEST OF THE INTERSECTION OF US HIGHWAY 90 ALTERNATE AND STATE HIGHWAY 6, AT THE HOUSTON HULL AIRPORT.

 TO REACH THE BASE LINE FROM THE INTERSECTION OF US HIGHWAY 59 AND STATE HIGHWAY 6, SOUTHWEST OF HOUSTON, GO NORTHWEST ON HIGHWAY 6
 FOR 3.1 KM (1.9 MI) TO THE INTERSECTION OF US HIGHWAY 90 ALTERNATE. TURN LEFT AND GO WEST ON US HIGHWAY 90 ALT FOR 1.2 KM (0.75 MI)
 TO A ROAD RIGHT. TURN RIGHT AND GO NORTH FOR 0.1 KM (0.05 MI) ACROSS THE RAILROAD TRACKS, AND THROUGH A PRISON GATE, TO A DIRT ROAD
 RIGHT. TURN RIGHT AND GO EAST FOR 0.6 KM (0.35 MI) TO A DIRT TRACK ROAD LEFT, JUST PAST THE END OF THE TAXIWAY. TURN LEFT AND GO
 NORTH FOR 0.1 KM (0.05 MI) TO THE 0 METER POINT ON THE LEFT. NOTE: TO REACH THE 150 AND 430 METER POINTS CONTINUE NORTH ON THE DIRT
 TRACK ROAD, BUT TO REACH THE 1350 POINT YOU MUST GO BACK OUT TO THE INTERSECTION OF US HIGHWAY 90 ALT AND STATE HIGHWAY 6. THEN, GO
 NORTH ON STATE HIGHWAY 6 FOR 1.7 KM (1.05 MI) TO THE AIRPORT ENTRANCE ON THE LEFT. TURN LEFT AND GO WEST ON ENTRANCE ROAD FOR 0.3 KM
 (0.2 MI) TO THE GUARD SHACK AND A NARROW PAVED ROAD LEFT. TURN LEFT AND GO SOUTH ON THE PAVED ROAD FOR 0.1 KM (0.05 MI) TO A CURVE
 RIGHT. FOLLOW THE CURVE TO THE RIGHT AND GO WEST FOR 0.2 KM (0.1 MI) TO A CURVE LEFT. FOLLOW THE CURVE TO THE LEFT AND GO SOUTHWEST
 ON THE PAVED ROAD FOR 0.4 KM (0.26 MI) TO THE 1350 METER POINT ON THE LEFT.

 THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT ON THE SOUTH END. IT CONSISTS OF THE 0, 150, 430, AND 1350 METER POINTS.
 THERE IS ALSO A DISK SET AT 100 FEET NORTH OF THE 0 METER POINT TO BE USED FOR TAPE CALIBRATION. IT IS SET ALONG THE EAST SIDE OF
 THE MAIN NORTH-SOUTH TAXIWAY. ALL MARKS ARE WITNESSED BY 3 SHORT FIBERGLASS POSTS.

 THE 0 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "0 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30 CM
 (12 IN) IN DIAMETER FLUSH WITH THE GROUND, 34.7 M (113.8 FT) NORTH OF THE SOUTH END OF THE TAXIWAY, 5.0 M (16.4 FT) WEST OF THE WEST
 EDGE OF A CULTIVATED FIELD, 4.5 M (14.8 FT) EAST OF THE EAST EDGE OF THE TAXIWAY, AND 1.4 M (4.6 FT) EAST OF A BLUE, TAXIWAY LIGHT.

 THE 150 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "150 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30
 CM (12 IN) IN DIAMETER FLUSH WITH THE GROUND, 6.1 M (20.0 FT) WEST OF THE WEST EDGE OF A CULTIVATED FIELD, 5.7 M (18.7 FT) EAST OF
 THE EAST EDGE OF THE TAXIWAY, AND 2.7 M (8.9 FT) EAST OF A BLUE, TAXIWAY LIGHT.

 THE 430 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "430 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30
 CM (12 IN) DIAMETER FLUSH WITH THE GROUND, 8.7 M (28.5 FT) SOUTHEAST OF A BLUE, TAXIWAY LIGHT, 8.0 M (26.2 FT) EAST OF THE EAST EDGE
 OF THE TAXIWAY, AND 5.8 M (19.0 FT) WEST OF THE WEST EDGE OF A CULTIVATED FIELD.

 THE 1350 METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "1350 M 1988" SET INTO THE TOP OF A ROUND CONCRETE POST 30
 CM (12 IN) IN DIAMETER RECESSED 0.1 M (0.3 FT) BELOW THE GROUND, 15.2 M (49.9 FT) EAST OF THE EAST EDGE OF THE TAXIWAY, 12.2 M (40.0
 FT) EAST OF A BLUE, TAXIWAY LIGHT, 12.0 M (39.4 FT) SOUTH OF THE APPROXIMATE CENTER OF A DRAINAGE DITCH, AND 4.3 M (14.1 FT) EAST OF
 THE CENTERLINE OF AN ASPHALT ROAD.

1THE 100-FOOT POINT IS A STANDARD NGS CALIBRATION BASE LINE TAPING DISK STAMPED "100 FT 1988" SET INTO THE TOP OF A ROUND CONCRETE
 POST 30 CM (12 IN) IN DIAMETER FLUSH WITH THE GROUND, 30.5 M (100 FT) NORTH OF THE 0 METER POINT, 6.0 M (19.7 FT) WEST OF THE WEST
 EDGE OF A CULTIVATED FIELD, 4.7 M (15.4 FT) EAST OF THE EAST EDGE OF THE TAXIWAY, AND 4.6 M (15.1 FT) SOUTHEAST OF A  BLUE, TAXIWAY
 LIGHT.

 USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY. FOR PERMISSION TO ENTER THE
 AIRPORT GROUNDS PLEASE CONTACT DON HULL, OWNER, OR JOHN HULL, MGR, AT HOUSTON HULL AIRPORT, 12888 HWY.6, SOUTH SUGAR LAND, TEXAS,
 77478. TELEPHONE (713) 491-2101. ALSO, THE PRISON FARM SOUTHWEST OF THE AIRPORT SHOULD BE INFORMED OF YOUR ACTIVITIES. CONTACT THE
 JESTER CENTRAL UNIT, RADIO PICKET, AT (713) 491-2146.

 THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE TEXAS SOCIETY OF PROFESSIONAL SURVEYORS. FOR MORE INFORMATION PLEASE CONTACT
 MR. PAUL KWAN AT LANDTECH CONSULTANTS, 2627 NORTH LOOP WEST, SUITE 224, HOUSTON, TEXAS, 77008. TELEPHONE (713) 861-7068.
1

  US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD:  N310982
  NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:  LAMPASAS                  TEXAS
  ROCKVILLE MD 20852 - OCTOBER 29, 1986             PROJECT ACCESSION NUMBER:  G15730                 LAMPASAS COUNTY


                                                LIST OF ADJUSTED DISTANCES (AUGUST 9, 1982)

                                                                                      ADJ. DIST.(M)   ADJ. DIST.(M)    STD.
    FROM STATION                    ELEV.(M)  TO STATION                      ELEV.(M)  HORIZONTAL     MARK - MARK   ERROR(MM)

        000                         352.045     150                           351.924      149.9961       149.9962       0.2
        000                         352.045     430                           353.027      429.9959       429.9970       0.4
        000                         352.045     1320                          371.080     1319.9907      1320.1280       0.6

        150                         351.924     430                           353.027      279.9998       280.0020       0.4
        150                         351.924     1320                          371.080     1169.9944      1170.1512       0.5

        430                         353.027     1320                          371.080      889.9943       890.1773       0.4


      DESCRIPTION OF LAMPASAS BASE LINE
      YEAR MEASURED:  1982
      CHIEF OF PARTY:  WJR

      THE BASE LINE IS LOCATED ABOUT 4.02 KM (2.5 MI) NORTH OF LAMPASAS OFF UNITED STATES HIGHWAY 281 AND ALONG THE WESTERN EDGE
      OF THE LAMPASAS MUNICIPAL AIRPORT.

      TO REACH THE BASE LINE FROM THE JUNCTION OF UNITED STATES HIGHWAYS 183, 190, AND 281 ON THE NORTH SIDE OF LAMPASAS, GO
      NORTH ON HIGHWAY 281 FOR 2.01 KM (1.25 MI) TO LAMPASAS AIRPORT ENTRANCE ON THE LEFT.  TURN LEFT, PASS THRU GATE AND GO
      WEST ALONG FENCE LINE ON TRACK ROAD FOR 0.16 KM (0.1 MI) TO THE 0 METER POINT ON THE RIGHT ABOUT 17.7 M (58 FT) NORTH OF
      THE TRACK ROAD AND 13.7 M (45.0 FT) WEST OF THE WEST EDGE OF RUNWAY.  TO REACH OTHER MARKS GO NORTH, PARALLEL WITH RUNWAY
      FOR 0.15 KM (0.1 MI) TO 150 METER POINT ON LEFT SET IN ROCK LEDGE, CONTINUE NORTH 0.28 KM (0.2 MI) TO 430 METER POINT ON
      LEFT, CONTINUE NORTH PARALLEL WITH RUNWAY FOR 0.89 KM (0.6 MI) TO THE 1320 METER POINT ON LEFT AT TOP OF HILL AND ABOUT
      86.9 M (285.0 FT) NORTH OF NORTH END OF RUNWAY.  THE ENTIRE BASE LINE IS SET ON A LINE PARALLEL WITH THE WESTERN EDGE OF
      THE RUNWAY.  NONE OF THE DISKS ARE STAMPED AT THIS TIME.  THEY ARE ALL SET IN CONCRETE SIMILAR TO THE 0 METER POINT.

      THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0 METER POINT ON THE SOUTH END.  IT IS MADE UP OF 0, 150, 430, AND 1320 METER
      POINTS WITH A POINT FOR THE CALIBRATION OF 100 FOOT TAPES SET WEST OF THE 0 METER POINT.

      THE 0 METER POINT IS A STANDARD NGS DISK NOT STAMPED AT THIS TIME SET INTO THE TOP OF A ROUND CONCRETE MONUMENT 41 CM (16
      IN) IN DIAMETER RECESSED 15 CM (6 IN) BELOW THE GROUND LOCATED 78.94 M (259.0 FT) SW FROM CENTER OF SOUTH END OF RUNWAY
      34, 30.48 M (100.0 FT) E FROM 100 FOOT POINT, 24.75 M (81.2 FT) FROM BARBED WIRE FENCE AND 17.74 M (58.2 FT) N FROM CENTER
      OF TRACK ROAD.

      THIS BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE LAMPASAS COUNTY SURVEYOR.  FOR FURTHER INFORMATION CONTACT MR.
      JERRY M. GOODSON, LAMPASAS COUNTY SURVEYOR, P.O. BOX 349, LAMPASAS, TX 76550. TELEPHONE (512) 556-6885.

1US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD: N310982
 NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:  LAMPASAS CBL              TEXAS
 ROCKVILLE MD 20852                                PROJECT ACCESSION NUMBER:  15730                  LAMPASAS COUNTY
                                                   NEAREST TOWN:  LAMPASAS

                                                LIST OF ADJUSTED DISTANCES  (APRIL 4, 1990)

                                                                                      ADJ. DIST.(M)   ADJ. DIST.(M)      STD.
    FROM STATION                    ELEV.(M)  TO STATION                      ELEV.(M)   HORIZONTAL     MARK - MARK   ERROR(MM)

    0                                352.045  150                              351.924      149.9964       149.9965       0.1
    0                                352.045  430                              353.030      429.9975       429.9987       0.5
    0                                352.045  1320                             371.117     1319.9912      1320.1289       0.7

    150                              351.924  430                              353.030      280.0011       280.0033       0.5
    150                              351.924  1320                             371.117     1169.9945      1170.1519       0.7

    430                              353.030  1320                             371.117      889.9931       890.1769       0.5

 A TAPE CALIBRATION MONUMENT WAS SET AT THE 100 FOOT POINT OF THE BASE LINE.  THE REDUCED MARK TO MARK DISTANCE IS 99.98 FT.

 DESCRIPTION OF: LAMPASAS BASE LINE
 YEAR MEASURED: 1982
 YEAR REMEASURED: 1990
 CHIEF OF PARTY: LPB

 THE BASE LINE IS LOCATED ABOUT 4.0 KM (2.5 MI) NORTH OF LAMPASAS, ALONG THE WESTERN EDGE OF THE LAMPASAS MUNICIPAL AIRPORT.

 THE BASE LINE IS A NORTH-SOUTH LINE WITH THE 0-METER POINT ON THE SOUTH END.  IT CONSISTS OF THE 0, 150, 430, AND 1320 METER POINTS
 WITH A 100-FOOT TAPE CALIBRATION STATION LOCATED TO THE WEST OF THE 0-METER POINT.  THE BASE LINE RUNS PARALLEL WITH THE WESTERN
 EDGE OF THE AIRPORT'S RUNWAY.

 TO REACH THE 0-METER POINT FROM THE JUNCTION OF UNITED STATES HIGHWAYS 183, 190, AND 281 ON THE NORTH SIDE OF LAMPASAS, GO NORTH ON
 HIGHWAY 281 FOR 2.0 KM (1.2 MI) TO THE LAMPASAS MUNICIPAL AIRPORT ENTRANCE ON THE LEFT.  TURN LEFT AND GO WEST THROUGH THE ENTRANCE
 GATE.  CONTINUE WESTERLY ON A TRACK ROAD ALONG THE FENCE LINE FOR 0.16 KM (0.1 MI) TO THE 0-METER POINT ON THE RIGHT.

 THE 0-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "0" SET IN THE TOP OF A CONCRETE POST RECESSED 13 CM (5 IN)
 BELOW THE SURFACE OF THE GROUND. IT IS 77.0 M (252.6 FT) SOUTHWEST OF THE SOUTHWESTERN CORNER OF THE RUNWAY, 14.5 M (47.6 FT) WEST
 OF THE EXTENSION OF THE WESTERN EDGE OF THE RUNWAY, AND 1.0 M (3.3 FT) NORTHWEST OF A WITNESS POST.

 THE 150-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "150" SET IN THE TOP OF A CONCRETE POST RECESSED 15 CM (6
 IN) BELOW THE SURFACE OF THE GROUND. IT IS 14.4 M (47.2 FT) WEST OF THE WESTERN EDGE OF THE RUNWAY AND 1.0 M (3.3 FT) WEST OF A
 WITNESS POST.

 THE 430-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "430" SET IN THE TOP OF A CONCRETE POST RECESSED 18 CM (7
 IN) BELOW THE SURFACE OF THE GROUND. IT IS 14.8 M (48.6 FT) WEST OF THE WESTERN EDGE OF THE RUNWAY AND 1.0 M (3.3 FT) EAST OF A
 WITNESS POST.

 THE 1320-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "1320" SET IN THE TOP OF A CONCRETE POST RECESSED 18 CM (7
 IN) BELOW THE SURFACE OF THE GROUND. IT IS 84.5 M (277.2 FT) NORTHWEST OF THE NORTHWESTERN CORNER OF THE RUNWAY AND 1.0 M (3.3 FT)
 EAST OF A WITNESS POST.

 THE 100-FOOT TAPE CALIBRATION STATION IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "100 FT" SET IN THE TOP OF A CONCRETE
 POST RECESSED 15 CM (6 IN) BELOW THE SURFACE OF THE GROUND. IT IS 30.47 M (99.98 FT) WEST OF THE 0-METER POINT AND 1.2 M (3.9 FT)
 NORTHEAST OF A WITNESS POST.  THE REDUCED MARK-TO-MARK DISTANCE IS 99.98 FT.

 USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY.  PROPER SAFETY PRECAUTIONS
 SHOULD BE OBSERVED WHILE WITHIN THE AIRPORT PROPERTY, AND THE AIRPORT MANAGER SHOULD BE NOTIFIED OF ALL ACTIVITIES.

 THIS CALIBRATION BASE LINE WAS ESTABLISHED IN CONJUNCTION WITH THE LAMPASAS COUNTY SURVEYOR.  FOR MORE INFORMATION CONTACT MR. JERRY
 M. GOODSON, LAMPASAS COUNTY SURVEYOR, P.O. BOX 349, LAMPASAS, TX 76550. TELEPHONE (512) 556-6885. OR CONTACT MR. ROBERT BRAME,
 LAMPASAS MUNICIPAL AIRPORT MANAGER, HC 03, P.O. BOX 22C, LAMPASAS, TX 76550. TELEPHONE (512) 556-6640.
1
                                                          ***MIDLAND***
  US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD:  N311014
  NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:  MIDLAND                   TEXAS
  ROCKVILLE MD 20852 - OCTOBER 29, 1986             PROJECT ACCESSION NUMBER:  G15730                 MIDLAND COUNTY

                                                LIST OF ADJUSTED DISTANCES  (JUNE 23, 1986)

                                                                                      ADJ. DIST.(M)   ADJ. DIST.(M)    STD.
    FROM STATION                    ELEV.(M)  TO STATION                     ELEV.(M)   HORIZONTAL     MARK - MARK   ERROR(MM)

          0                          839.871       150                       839.049      150.0694       150.0717       0.1
          0                          839.871       430                       838.264      430.1323       430.1353       0.4
          0                          839.871      1420                       834.981     1419.9940      1420.0024       0.6

        150                          839.049       430                       838.264      280.0629       280.0640       0.4
        150                          839.049      1420                       834.981     1269.9245      1269.9310       0.6

        430                          838.264      1420                       834.981      989.8617       989.8671       0.4

      DESCRIPTION OF MIDLAND BASE LINE
      YEAR MEASURED:  1986
      CHIEF OF PARTY:  WJR

      TO REACH THE BASE LINE FROM THE JUNCTION OF INTERSTATE HIGHWAY 20 AND TEXAS STATE HIGHWAY 349 IN MIDLAND, GO EAST ON
      INTERSTATE 20 FOR APPROXIMATELY 6.4 MI (10 KM) TO THE FRONTAGE ROAD EXIT (EXIT NO 143).  CONTINUE STRAIGHT AHEAD ON THE
      FRONTAGE ROAD FOR 1.1 MI (1.8 KM) UNTIL YOU REACH A STOP SIGN AT THE JUNCTION OF TWO FRONTAGE ROADS.  TURN RIGHT AND HEAD
      EAST ON THE FRONTAGE ROAD FOR 1.5 MI (2.4 KM) TO THE 0 METER POINT ON THE RIGHT SIDE OF THE ROAD.

      THE BASE LINE RUNS WEST-EAST AND CONSISTS OF 4 MARKS AT THE 0, 150, 430, AND 1420 METER POINTS, PLUS A 100 FT. POINT.  ALL
      MARKS ARE IN LINE WITH THE 0 METER POINT, WHICH IS LOCATED AT THE WESTERN MOST END OF THE BASE LINE.

      THE DISKS ARE STANDARD NGS CALIBRATION BASE LINE DISKS WITH EACH DISK HAVING A DIFFERENT STAMPING.  THE 0 METER POINT IS
      STAMPED ---0---, THE 150 METER POINT IS STAMPED ---150---, THE 430 METER POINT IS STAMPED ---430---, AND THE 1420 METER
      POINT IS STAMPED ---1420---.

      THE 0 METER POINT IS LOCATED 55.0 FT (16.8 M ) SOUTH OF THE SOUTHERN MOST RAIL AND 43.2 FT (13.2 M) NORTH OF THE
      CENTERLINE OF THE FRONTAGE ROAD.

      THE 150 METER POINT IS LOCATED 54.3 FT (16.5 M) SOUTH OF THE SOUTHERN MOST RAIL AND 33.8 FT (10.3 M ) NORTH OF THE
      CENTERLINE OF THE FRONTAGE ROAD.

      THE 430 METER POINT IS LOCATED 54.6 FT (16.7 M) SOUTH OF THE SOUTHERN MOST RAIL AND 32.8 FT (10.0 M) NORTH OF THE
      CENTERLINE OF THE FRONTAGE ROAD.

      THE 1420 METER POINT IS LOCATED 55.9 FT (17.5 M) SOUTH OF THE SOUTHERN MOST RAIL AND 31.3 FT (9.6 M) NORTH OF THE
      CENTERLINE OF THE FRONTAGE ROAD.

      THIS BASE LINE WAS ESTABLISHED FOR THE PERMIAN BASIN CHAPTER 10 OF THE TEXAS SURVEYORS ASSOCIATION, MIDLAND, TX.  FOR
      FURTHER INFORMATION CONCERNING THIS BASE LINE, CONTACT STAN PIPER AT (915) 561-9025 OR GEORGE THORNLEY AT (915) 332-5058.

1US DEPARTMENT OF COMMERCE - NOAA                  CALIBRATION BASE LINE DATA                        QUAD: N311014
 NOS - NATIONAL GEODETIC SURVEY                    BASE LINE DESIGNATION:  MIDLAND CBL               TEXAS
 ROCKVILLE MD 20852                                PROJECT ACCESSION NUMBER:  15730                  MIDLAND COUNTY
                                                   NEAREST TOWN:  MIDLAND

                                                LIST OF ADJUSTED DISTANCES  (APRIL 4, 1990)

                                                                                      ADJ. DIST.(M)   ADJ. DIST.(M)      STD.
    FROM STATION                    ELEV.(M)  TO STATION                      ELEV.(M)   HORIZONTAL     MARK - MARK   ERROR(MM)

    0                                839.871  150                              839.048      150.0694       150.0717       0.1
    0                                839.871  430                              838.262      430.1309       430.1339       0.3
    0                                839.871  1420                             834.969     1419.9919      1420.0004       0.5

    150                              839.048  430                              838.262      280.0615       280.0626       0.3
    150                              839.048  1420                             834.969     1269.9225      1269.9290       0.5

    430                              838.262  1420                             834.969      989.8610       989.8665       0.3

 A TAPE CALIBRATION MONUMENT WAS SET AT THE 100 FOOT POINT OF THE BASE LINE.  THE REDUCED MARK TO MARK DISTANCE IS 100.00 FT.

 DESCRIPTION OF: MIDLAND BASE LINE
 YEAR MEASURED: 1986
 YEAR REMEASURED: 1990
 CHIEF OF PARTY: LPB


 THE BASE LINE IS LOCATED ABOUT 54.7 KM (34.0 MI) WEST OF BIG SPRING, ABOUT 20.9 (13 MI) WEST OF STANTON, AND ABOUT 11.3 (7.0 MI)
 EAST OF MIDLAND. IT LIES BETWEEN A FRONTAGE ROAD AND A RAILROAD TRACK WHICH PARALLEL INTERSTATE HIGHWAY 20.

 THE BASE LINE IS AN EAST-WEST LINE WITH THE 0-METER POINT ON THE WEST END. IT CONSISTS OF THE 0, 150, 430, AND 1420-METER POINTS
 WITH A 100-FOOT TAPE CALIBRATION STATION LOCATED ON LINE WITH AND EAST OF THE 0-METER POINT.

 TO REACH THE 0-METER POINT FROM THE INTERSECTION OF INTERSTATE HIGHWAY 20 AND TEXAS STATE HIGHWAY 349 ON THE SOUTH SIDE OF MIDLAND,
 GO EAST ON HIGHWAY 20 FOR ABOUT 10.0 KM (6.4 MI) TO THE FRONTAGE ROAD EXIT NO.143. TAKE THE EXIT AND CONTINUE STRAIGHT AHEAD ON THE
 FRONTAGE ROAD FOR 1.8 KM (1.1 MI) TO A STOP SIGN AT THE INTERSECTION OF TWO FRONTAGE ROADS. TURN RIGHT AND GO EAST ON THE FRONTAGE
 ROAD FOR 2.4 KM (1.5 MI)TO THE 0-METER POINT ON THE LEFT, ABOUT 70 METERS PAST THE INTERSECTION OF COUNTY ROAD 111 ON THE RIGHT.

 THE 0-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "0" SET IN THE TOP OF A 61 CM (24 IN) SQUARE CONCRETE POST
 FLUSH WITH THE SURFACE OF THE GROUND. IT IS 16.5 M (54.1 FT) SOUTH OF THE SOUTH RAIL, 13.1 M (43.0 FT) NORTH OF THE CENTERLINE OF
 THE FRONTAGE ROAD, AND 0.8 M (2.6 FT) SOUTH OF A WITNESS POST.

 THE 150-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "150" SET IN THE TOP OF A 56 CM (22 IN) SQUARE CONCRETE
 POST FLUSH WITH THE SURFACE OF THE GROUND. IT IS 16.5 M (54.1 FT) SOUTH OF THE SOUTH RAIL, 10.2 M (33.5 FT) NORTH OF THE CENTERLINE
 OF THE FRONTAGE ROAD, AND 1.2 M (3.9 FT) SOUTH OF A WITNESS POST.

 THE 430-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "430" SET IN THE TOP OF A 61 CM (24 IN) SQUARE CONCRETE
 POST RECESSED 5 CM (2 IN) BELOW THE SURFACE OF THE GROUND. IT IS 16.7 M (54.8 FT) SOUTH OF THE SOUTH RAIL, 10.1 M (33.1 FT) NORTH OF
 THE CENTERLINE OF THE FRONTAGE ROAD, AND 1.0 M (3.3 FT) SOUTH OF A WITNESS POST.

 THE 1420-METER POINT IS A STANDARD NGS CALIBRATION BASE LINE DISK STAMPED "1420" SET IN THE TOP OF A 61 CM (24 IN) SQUARE CONCRETE
 POST RECESSED 5 CM (2 IN) BELOW THE SURFACE OF THE GROUND. IT IS 17.1 M (56.1 FT) SOUTH OF THE SOUTH RAIL, 9.6 M (31.5 FT) NORTH OF
 THE CENTERLINE OF THE FRONTAGE ROAD, AND 1.0 M (3.3 FT) SOUTH OF A WITNESS POST.

 THE 100-FOOT TAPE CALIBRATION STATION IS A STANDARD NGS CALIBRATION BASE LINE DISK (WITH +) STAMPED WITH A DIMPLE, SET IN THE TOP OF
 A 61 CM (24 IN) SQUARE CONCRETE POST RECESSED 5 CM (2 IN) BELOW THE SURFACE OF THE GROUND. IT IS 30.48 M (100.00 FT) EAST OF THE 0-
 METER POINT, 16.5 M (54.1 FT) SOUTH OF THE SOUTH RAIL, 11.8 M (38.7 FT) NORTH OF THE CENTERLINE OF THE FRONTAGE ROAD, AND 0.7 M (2.3
 FT) SOUTH OF A WITNESS POST.

 USER NOTES: CBL USERS SHOULD TAKE CARE IN PLUMBING OVER ALL POINTS. ELEVATIONS ARE FOR CBL USE ONLY.

 THIS CBL WAS ESTABLISHED IN CONJUNCTION WITH THE PERMIAN BASIN CHAPTER 10 OF THE TEXAS SURVEYORS ASSOCIATION, MIDLAND, TEXAS. FOR
 MORE INFORMATION CONTACT MR. STAN PIPER, P.O. BOX 60432, MIDLAND, TEXAS 79711, TELEPHONE (915) 561-9025, OR MR. HARVEY A. HANSEN,
 P.E., DIRECTOR OF ENGINEERING AND TRANSPORTATION, P.O. BOX 1152, MIDLAND, TEXAS 79702-1152, TELEPHONE (915) 685-7288.