National Geodetic Survey,   Retrieval Date = JANUARY 20, 2002
 DC1900 ***********************************************************************
 DC1900  DESIGNATION -  HEAD
 DC1900  PID         -  DC1900
 DC1900  STATE/COUNTY-  CA/SAN DIEGO
 DC1900  USGS QUAD   -  JACUMBA (1975)
 DC1900
 DC1900                         *CURRENT SURVEY CONTROL
 DC1900  ___________________________________________________________________
 DC1900* NAD 83(1992)-  32 39 16.09734(N)    116 13 21.30411(W)     ADJUSTED  
 DC1900* NAVD 88     -      1167.3    (meters)    3830.     (feet)  VERTCON   
 DC1900  ___________________________________________________________________
 DC1900  EPOCH DATE  -        1991.35
 DC1900  LAPLACE CORR-          -3.74  (seconds)                    DEFLEC99
 DC1900  GEOID HEIGHT-         -32.50  (meters)                     GEOID99
 DC1900
 DC1900  HORZ ORDER  -  SECOND
 DC1900
 DC1900.The horizontal coordinates were established by classical geodetic methods
 DC1900.and adjusted by the National Geodetic Survey in June 1996.
 DC1900.The horizontal coordinates are valid at the epoch date displayed above.
 DC1900.The epoch date for horizontal control is a decimal equivalence
 DC1900.of Year/Month/Day.
 DC1900
 DC1900.The NAVD 88 height was computed by applying the VERTCON shift value to
 DC1900.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
 DC1900
 DC1900.The Laplace correction was computed from DEFLEC99 derived deflections.
 DC1900
 DC1900.The geoid height was determined by GEOID99.
 DC1900
 DC1900;                    North         East     Units   Scale      Converg.
 DC1900;SPC CA 6     -   554,099.624 2,002,572.070   MT  1.00002394 +0 00 54.2
 DC1900;SPC CA 6     - 1,817,908.52  6,570,105.20   sFT  1.00002394 +0 00 54.2
 DC1900;UTM  11      - 3,613,249.566   572,905.610   MT  0.99966554 +0 25 10.2
 DC1900
 DC1900:                Primary Azimuth Mark                     Grid Az
 DC1900:SPC CA 6     -  HEAD AZ MK                               004 21 11.8
 DC1900:UTM  11      -  HEAD AZ MK                               003 56 55.8
 DC1900
 DC1900|---------------------------------------------------------------------|
 DC1900| PID    Reference Object                     Distance      Geod. Az  |
 DC1900|                                                           dddmmss.s |
 DC1900|        HEAD AZ MK                                         0042206.0 |
 DC1900|        HEAD RM 1                                          18142     |
 DC1900|        HEAD RM 2                                          25821     |
 DC1900|---------------------------------------------------------------------|
 DC1900
 DC1900                          SUPERSEDED SURVEY CONTROL
 DC1900
 DC1900  NAD 83(1986)-  32 39 16.09924(N)    116 13 21.30345(W) AD(1984.00) 2
 DC1900  NAD 27      -  32 39 15.88120(N)    116 13 18.23460(W) AD(       ) 2
 DC1900  NGVD 29     -      1166.5    (m)         3827.     (f) VERT ANG       
 DC1900
 DC1900.Superseded values are not recommended for survey control.
 DC1900.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 DC1900.See file dsdata.txt to determine how the superseded data were derived.
 DC1900
 DC1900_MARKER: DD = SURVEY DISK
 DC1900_SETTING: 66 = SET IN ROCK OUTCROP
 DC1900
 DC1900  HISTORY     - Date     Condition        Report By
 DC1900  HISTORY     - 1958     MONUMENTED       CADH
 DC1900
 DC1900                          STATION DESCRIPTION
 DC1900
 DC1900'DESCRIBED BY CA DIV OF HIGHWAYS 1958
 DC1900'STATION HEAD IS LOCATED 3.2 MI. NW OF THE TOWN OF JACUMBA.  TO
 DC1900'REACH THE STATION GO W ON U.S. HIGHWAY 80 FROM JACUMBA POST
 DC1900'OFFICE FOR 3.2 MI. TO ENG. STA. G-307+20.  HERE TURN RIGHT (NE)
 DC1900'ON DIRT ROAD.  PROCEED FOR 0.15 MI. AND TURN LEFT (N) ONTO
 DC1900'DIM ROAD FOLLOWING VALLEY LEADING N.  FOLLOW THIS ROAD ABOUT
 DC1900'1/2 MI. TO END OF TRUCK TRAVEL.  FROM THIS POINT PROCEED ON
 DC1900'FOOT (ABOUT A 20-MIN. PACK) TO THE HIGH POINT AT (N) END OF
 DC1900'HIGH RIDGE, WHICH LIES TO THE RIGHT (NE).  STATION HEAD IS
 DC1900'LOCATED HERE.  ALL MONUMENTS ARE STANDARD HIGHWAY DISKS
 DC1900'AND ARE LOCATED AS SHOWN BY THE GIVEN DIRECTIONS AND
 DC1900'DISTANCES.  THE MARKS ARE CALIFORNIA, DIVISION OF HIGHWAYS
 DC1900'TWO-INCH BRASS DISKS STAMPED, HEAD USC AND GS, HEAD R.M. 1
 DC1900'USC AND GS AND HEAD R.M. 2 USC AND GS, 1958.