National Geodetic Survey,   Retrieval Date = MARCH 18, 2001
 GN0677 ***********************************************************************
 GN0677  DESIGNATION -  LANGLEY
 GN0677  PID         -  GN0677
 GN0677  STATE/COUNTY-  NM/RIO ARRIBA
 GN0677  USGS QUAD   -  POLVADERA PEAK (1977)
 GN0677
 GN0677                         *CURRENT SURVEY CONTROL
 GN0677  ___________________________________________________________________
 GN0677* NAD 83(1992)-  36 00 26.41290(N)    106 23 04.38457(W)     ADJUSTED  
 GN0677* NAVD 88     -      3523.8    (meters)   11561.     (feet)  VERTCON   
 GN0677  ___________________________________________________________________
 GN0677  LAPLACE CORR-          -4.66  (seconds)                    DEFLEC99
 GN0677  GEOID HEIGHT-         -18.62  (meters)                     GEOID99
 GN0677
 GN0677  HORZ ORDER  -  THIRD
 GN0677
 GN0677.The horizontal coordinates were established by classical geodetic methods
 GN0677.and adjusted by the National Geodetic Survey in December 1993.
 GN0677
 GN0677.The NAVD 88 height was computed by applying the VERTCON shift value to
 GN0677.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
 GN0677
 GN0677.The Laplace correction was computed from DEFLEC99 derived deflections.
 GN0677
 GN0677.The geoid height was determined by GEOID99.
 GN0677
 GN0677;                    North         East     Units   Scale      Converg.
 GN0677;SPC NM C     -   555,335.279   487,870.695   MT  0.99990181 -0 04 44.8
 GN0677;UTM  13      - 3,985,648.648   375,221.462   MT  0.99979185 -0 48 50.6
 GN0677
 GN0677:                Primary Azimuth Mark                     Grid Az
 GN0677:SPC NM C     -  NORTH LANGLEY                            342 15 28.4
 GN0677:UTM  13      -  NORTH LANGLEY                            342 59 34.2
 GN0677
 GN0677|---------------------------------------------------------------------|
 GN0677| PID    Reference Object                     Distance      Geod. Az  |
 GN0677|                                                           dddmmss.s |
 GN0677| GN0451 NORTH LANGLEY                       APPROX. 6.1 KM 3421043.6 |
 GN0677|---------------------------------------------------------------------|
 GN0677
 GN0677                          SUPERSEDED SURVEY CONTROL
 GN0677
 GN0677  NAD 83(1986)-  36 00 26.41805(N)    106 23 04.39011(W) AD(       ) 3
 GN0677  NGVD 29     -      3522.5    (m)        11557.     (f) VERT ANG       
 GN0677
 GN0677.Superseded values are not recommended for survey control.
 GN0677.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 GN0677.See file dsdata.txt to determine how the superseded data were derived.
 GN0677
 GN0677_MARKER: DS = TRIANGULATION STATION DISK
 GN0677_SETTING: 0 = UNSPECIFIED SETTING
 GN0677_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
 GN0677
 GN0677  HISTORY     - Date     Condition        Recov. By
 GN0677  HISTORY     - 1931     MONUMENTED       USGS
 GN0677
 GN0677                          STATION DESCRIPTION
 GN0677
 GN0677'DESCRIBED BY US GEOLOGICAL SURVEY 1931
 GN0677'FOLLOWING DESCRIPTION BY USGS, 1931
 GN0677'
 GN0677'ON HIGHEST POINT OF TSCHICEMA MOUNTAIN, 17 MI. W. OF ESPANOLA.
 GN0677'ANIMALS CAN BE TAKEN TO STATION BY TRAIL FROM SANTA CLARA CANYON.
 GN0677'TRAILS LEAD UP S. SIDE OF MOUNTAIN.
 GN0677'
 GN0677'LANGLEY, WAS DESCRIBED BY GEOLOGICAL SURVEY BUL. 122, PAGE 165,
 GN0677'1882-90, AND IN 1906, H. L. BALDWIN, JR., IN TRIANGULATION OF THE
 GN0677'PLATEAU REGION OF NEW MEXICO (1887) AS ON THE HIGHEST POINT OF TEWAN
 GN0677'MOUNTAINS.  THIS PEAK WAS CALLED --SANTA CLARA-- BY WHEELER SURVEY AND
 GN0677'--LANGLEY-- BY GEOLOGICAL SURVEY.  THE POINT WHERE THE SIGNAL MONUMENT
 GN0677'NOW STANDS IS BELIEVED TO HAVE BEEN THE LOCATION OF THE OLD CUT-IN
 GN0677'POINT AS THE REMAINS OF AN OLD MONUMENT ARE IN EVIDENCE.
 GN0677'
 GN0677'STATION MARK--A STANDARD BRONZE TABLET CEMENTED IN ROCK IN PLACE AND
 GN0677'STAMPED---R 1931---.
 GN0677'
 GN0677'REFERENCE MARK NO. 1--STANDARD BRONZE TABLET STAMPED---REF MARK
 GN0677'NO. 1---, DIST. 33.6 FT.
 GN0677'
 GN0677'REFERENCE MARK NO. 2--STANDARD BRONZE TABLET STAMPED---REF MARK
 GN0677'NO. 2---, DIST. 51.8 FT.