National Geodetic Survey,   Retrieval Date = NOVEMBER 13, 2000
 DC1904 ***********************************************************************
 DC1904  DESIGNATION -  PUFF USE 1941
 DC1904  PID         -  DC1904
 DC1904  STATE/COUNTY-  CA/SAN DIEGO
 DC1904  USGS QUAD   -  JACUMBA (1975)
 DC1904
 DC1904                         *CURRENT SURVEY CONTROL
 DC1904  ___________________________________________________________________
 DC1904* NAD 83(1992)-  32 43 52.60133(N)    116 10 52.56723(W)     ADJUSTED
 DC1904* NAVD 88     -      1397.     (meters)    4583.     (feet)  VERTCON
 DC1904  ___________________________________________________________________
 DC1904  EPOCH DATE  -        1991.35
 DC1904  LAPLACE CORR-          -4.47  (seconds)                    DEFLEC99
 DC1904  GEOID HEIGHT-         -32.82  (meters)                     GEOID99
 DC1904
 DC1904  HORZ ORDER  -  THIRD
 DC1904
 DC1904.The horizontal coordinates were established by classical geodetic methods
 DC1904.and adjusted by the National Geodetic Survey in June 1996.
 DC1904.The horizontal coordinates are valid at the epoch date displayed above.
 DC1904.The epoch date for horizontal control is a decimal equivalence
 DC1904.of Year/Month/Day.
 DC1904
 DC1904.The NAVD 88 height was computed by applying the VERTCON shift value to
 DC1904.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
 DC1904
 DC1904.The Laplace correction was computed from DEFLEC99 derived deflections.
 DC1904
 DC1904.The geoid height was determined by GEOID99.
 DC1904
 DC1904;                    North         East     Units   Scale      Converg.
 DC1904;SPC CA 6     - 1,845,860.26  6,582,803.84   sFT  1.00000907 +0 02 16.0
 DC1904;SPC CA 6     -   562,619.331 2,006,442.622   MT  1.00000907 +0 02 16.0
 DC1904;UTM  11      - 3,621,793.429   576,714.568   MT  0.99967257 +0 26 33.8
 DC1904
 DC1904:                Primary Azimuth Mark                     Grid Az
 DC1904:SPC CA 6     -  TULLE                                    232 28 31.8
 DC1904:UTM  11      -  TULLE                                    232 04 14.0
 DC1904
 DC1904|---------------------------------------------------------------------|
 DC1904| PID    Reference Object                     Distance      Geod. Az  |
 DC1904|                                                           dddmmss.s |
 DC1904| DC1898 TULLE                               APPROX. 5.4 KM 2323047.8 |
 DC1904|---------------------------------------------------------------------|
 DC1904
 DC1904                          SUPERSEDED SURVEY CONTROL
 DC1904
 DC1904  NAD 83(1986)-  32 43 52.60367(N)    116 10 52.56718(W) AD(1984.00) 3
 DC1904  NAD 27      -  32 43 52.39610(N)    116 10 49.49445(W) AD(       ) 3
 DC1904  NGVD 29     -      1396.     (m)         4580.     (f) VERT ANG
 DC1904
 DC1904.Superseded values are not recommended for survey control.
 DC1904.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 DC1904.See file dsdata.txt to determine how the superseded data were derived.
 DC1904
 DC1904_MARKER: DD = SURVEY DISK
 DC1904_SETTING: 0 = UNSPECIFIED SETTING
 DC1904_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
 DC1904
 DC1904  HISTORY     - Date     Condition        Recov. By
 DC1904  HISTORY     - 1941     MONUMENTED       USE
 DC1904
 DC1904                          STATION DESCRIPTION
 DC1904
 DC1904'DESCRIBED BY US ENGINEERS 1941
 DC1904'STATION IS STANDARD DISK CEMENTED IN ROCK, STAMPED PUFF.
 DC1904'
 DC1904'STATION IS LOCATED ON TOP OF TUNNEL 16 ON SAN DIEGO-ARIZONA RAILROAD
 DC1904'ABOUT 6.0 MILES NORTH OF JACUMBA.
 DC1904'
 DC1904'TO REACH FROM JACUMBA POST OFFICE GO EAST ON U.S. HIGHWAY 80 FOR
 DC1904'14.2 MILES THRU INKOPAH GORGE AND ACROSS CONCRETE BRIDGE TO SECOND
 DC1904'SET OF GUARD RAILS ON LEFT OF ROAD 0.4 MILES EAST OF BRIDGE, TURN
 DC1904'LEFT ONTO DIRT ROAD AND GO 4.4 MILES ACROSS TRACKS, PAST MINE TO
 DC1904'JUNCTION, TURN LEFT AND GO 2.6 MILES TO RAILROAD TRACKS, CROSS
 DC1904'TRACKS AND GO 1.6 MILES AND CROSS TRACKS, TURN RIGHT AND FOLLOW
 DC1904'TRACKS 1.3 MILES TO DOS CABEZAS, FOLLOW ROAD TO END OF TRUCK
 DC1904'TRAVEL, WALK UP RAILROAD TRACKS TO TUNNEL 16.  STATION IS ON TOP
 DC1904'OF TUNNEL.  TURN RIGHT AT NORTH END OF TUNNEL AND FOLLOW OLD ROAD
 DC1904'BED TO POINT WHERE IT TURNS BACK TOWARD RAILROAD.  CLIMB RIDGE TO
 DC1904'LEFT FROM THIS POINT TO STATION SITE.
 DC1904'
 DC1904'R.M. 1 IS STANDARD DISK CEMENTED IN ROCK, STAMPED R.M. 1.
 DC1904'
 DC1904'R.M. 2 IS A STANDARD DISK CEMENTED IN ROCK, STAMPED R.M. 2.