National Geodetic Survey,   Retrieval Date = NOVEMBER 13, 2000
 DC1906 ***********************************************************************
 DC1906  DESIGNATION -  GASP USE 1941
 DC1906  PID         -  DC1906
 DC1906  STATE/COUNTY-  CA/SAN DIEGO
 DC1906  USGS QUAD   -  JACUMBA (1975)
 DC1906
 DC1906                         *CURRENT SURVEY CONTROL
 DC1906  ___________________________________________________________________
 DC1906* NAD 83(1992)-  32 44 19.50204(N)    116 13 29.10578(W)     ADJUSTED
 DC1906* NAVD 88     -      1397.     (meters)    4583.     (feet)  VERTCON
 DC1906  ___________________________________________________________________
 DC1906  EPOCH DATE  -        1991.35
 DC1906  LAPLACE CORR-          -8.84  (seconds)                    DEFLEC99
 DC1906  GEOID HEIGHT-         -32.67  (meters)                     GEOID99
 DC1906
 DC1906  HORZ ORDER  -  THIRD
 DC1906
 DC1906.The horizontal coordinates were established by classical geodetic methods
 DC1906.and adjusted by the National Geodetic Survey in June 1996.
 DC1906.The horizontal coordinates are valid at the epoch date displayed above.
 DC1906.The epoch date for horizontal control is a decimal equivalence
 DC1906.of Year/Month/Day.
 DC1906
 DC1906.The NAVD 88 height was computed by applying the VERTCON shift value to
 DC1906.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
 DC1906
 DC1906.The Laplace correction was computed from DEFLEC99 derived deflections.
 DC1906
 DC1906.The geoid height was determined by GEOID99.
 DC1906
 DC1906;                    North         East     Units   Scale      Converg.
 DC1906;SPC CA 6     - 1,848,573.04  6,569,430.73   sFT  1.00000772 +0 00 49.9
 DC1906;SPC CA 6     -   563,446.191 2,002,366.491   MT  1.00000772 +0 00 49.9
 DC1906;UTM  11      - 3,622,591.173   572,634.079   MT  0.99966505 +0 25 09.4
 DC1906
 DC1906:                Primary Azimuth Mark                     Grid Az
 DC1906:SPC CA 6     -  GRUNT USE 1941                           355 56 58.0
 DC1906:UTM  11      -  GRUNT USE 1941                           355 32 38.5
 DC1906
 DC1906|---------------------------------------------------------------------|
 DC1906| PID    Reference Object                     Distance      Geod. Az  |
 DC1906|                                                           dddmmss.s |
 DC1906| DC1873 GRUNT USE 1941                      APPROX. 1.6 KM 3555747.9 |
 DC1906|---------------------------------------------------------------------|
 DC1906
 DC1906                          SUPERSEDED SURVEY CONTROL
 DC1906
 DC1906  NAD 83(1986)-  32 44 19.50422(N)    116 13 29.10552(W) AD(1984.00) 3
 DC1906  NAD 27      -  32 44 19.29951(N)    116 13 26.03258(W) AD(       ) 3
 DC1906  NGVD 29     -      1396.     (m)         4580.     (f) VERT ANG
 DC1906
 DC1906.Superseded values are not recommended for survey control.
 DC1906.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 DC1906.See file dsdata.txt to determine how the superseded data were derived.
 DC1906
 DC1906_MARKER: DD = SURVEY DISK
 DC1906_SETTING: 0 = UNSPECIFIED SETTING
 DC1906_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
 DC1906
 DC1906  HISTORY     - Date     Condition        Recov. By
 DC1906  HISTORY     - 1941     MONUMENTED       USE
 DC1906
 DC1906                          STATION DESCRIPTION
 DC1906
 DC1906'DESCRIBED BY US ENGINEERS 1941
 DC1906'STATION IS STANDARD DISK IN ROCK, STAMPED GASP.
 DC1906'
 DC1906'STATION IS LOCATED ON HIGH HILL WEST ACROSS CARRIZO WASH FROM TUNNEL
 DC1906'19 ON SAN DIEGO-ARIZONA RAILROAD ABOUT 7 MILES NORTH OF JACUMBA.
 DC1906'
 DC1906'TO REACH FROM JACUMBA P.O. GO EAST ON U.S. HIGHWAY 80 FOR 14.2 MILES
 DC1906'THRU INKOPAH GORGE AND ACROSS CONCRETE BRIDGE TO SECOND SET OF GUARD
 DC1906'RAILS ON LEFT OF ROAD, 0.4 MILES EAST OF BRIDGE, TURN LEFT ONTO
 DC1906'DIRT ROAD AND FOLLOW 4.4 MILES PAST MICA MINE AND ACROSS RAILROAD
 DC1906'TO JUNCTION, TURN LEFT AND GO 2.6 MILES AND CROSS RAILROAD
 DC1906'TRACKS, GO 1.6 MILES AND CROSS RAILROAD TRACKS, TURN RIGHT AND
 DC1906'FOLLOW ALONG TRACKS 1.3 MILES TO DOS CABEZAS, FOLLOW ROAD TO
 DC1906'END OF TRUCK TRAVEL.  PROCEED UP RAILROAD ON FOOT TO TUNNEL
 DC1906'19.  GO THRU TUNNEL AND THEN TURN RIGHT DOWN STEEP GRADE INTO
 DC1906'CARRIZO WASH, FOLLOW WASH NORTH ABOUT 1 MILE, TURN LEFT INTO
 DC1906'ANOTHER WASH AND FOLLOW TO JUNCTION OF TWO CANYONS, FOLLOW
 DC1906'RIDGE BETWEEN TWO CANYONS TO HIGH POINT AND STATION SITE, 3 TO 4
 DC1906'HOUR PACK FROM END OF TRUCK TRAVEL.  DO NOT ATTEMPT AT NIGHT.
 DC1906'
 DC1906'REFERENCE MARK 1 IS STANDARD DISK IN ROCK, STAMPED R.M. 1.
 DC1906'
 DC1906'REFERENCE MARK 2 IS STANDARD DISK IN ROCK, STAMPED R.M. 2.