National Geodetic Survey,   Retrieval Date = AUGUST  2, 2022
 JS4805 ***********************************************************************
 JS4805  DESIGNATION -  DARBY
 JS4805  PID         -  JS4805
 JS4805  STATE/COUNTY-  CA/CALAVERAS
 JS4805  COUNTRY     -  US
 JS4805  USGS QUAD   -  MURPHYS (2018)
 JS4805
 JS4805                         *CURRENT SURVEY CONTROL
 JS4805  ______________________________________________________________________
 JS4805* NAD 83(1992) POSITION- 38 10 16.56094(N) 120 23 07.09723(W)   ADJUSTED  
 JS4805* NAD 83(1992) EPOCH   -  1991.35
 JS4805* ORTHO HEIGHT -  1125.2   (meters)     3692.    (feet) VERTCON   
 JS4805  ______________________________________________________________________
 JS4805  GEOID HEIGHT    -        -27.235 (meters)                     GEOID18
 JS4805  LAPLACE CORR    -         10.10  (seconds)                    DEFLEC18
 JS4805  HORZ ORDER      -  THIRD
 JS4805
 JS4805.The horizontal coordinates were established by classical geodetic methods
 JS4805.and adjusted by the National Geodetic Survey in March 1994.
 JS4805.
 JS4805.The NAVD 88 height was computed by applying the VERTCON shift value to
 JS4805.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
 JS4805
 JS4805.Significant digits in the geoid height do not necessarily reflect accuracy.
 JS4805
 JS4805.Photos may exist for this station.
 JS4805
 JS4805.The Laplace correction was computed from DEFLEC18 derived deflections.
 JS4805
 JS4805. The following values were computed from the NAD 83(1992) position.
 JS4805
 JS4805;                    North         East     Units Scale Factor Converg.
 JS4805;SPC CA 3     -   685,488.209 2,010,050.044   MT  0.99995601   +0 04 12.8
 JS4805;SPC CA 3     - 2,248,972.57  6,594,639.19   sFT  0.99995601   +0 04 12.8
 JS4805;UTM  10      - 4,228,048.905   729,047.294   MT  1.00024617   +1 36 59.8
 JS4805
 JS4805!             -  Elev Factor  x  Scale Factor =   Combined Factor
 JS4805!SPC CA 3     -   0.99982774  x   0.99995601  =   0.99978376
 JS4805!UTM  10      -   0.99982774  x   1.00024617  =   1.00007387
 JS4805
 JS4805_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SGH2904728048(NAD 83)
 JS4805
 JS4805|---------------------------------------------------------------------|
 JS4805| PID    Reference Object                     Distance      Geod. Az  |
 JS4805|                                                           dddmmss.s |
 JS4805| CS7605 DARBY RM 2                           42.020 METERS 00753     |
 JS4805| CS7604 DARBY RM 1                           27.828 METERS 29848     |
 JS4805|---------------------------------------------------------------------|
 JS4805
 JS4805                          SUPERSEDED SURVEY CONTROL
 JS4805
 JS4805  NAD 83(1986)-  38 10 16.55749(N)    120 23 07.11449(W) AD(1984.00) 3
 JS4805  NGVD 29 (03/12/93) 1124.4    (m)         3689.     (f) VERT ANG       
 JS4805
 JS4805.Superseded values are not recommended for survey control.
 JS4805
 JS4805.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 JS4805
 JS4805_MARKER: DB = BENCH MARK DISK
 JS4805_SETTING: 9 = SET IN PREFABRICATED CONCRETE POST IMBEDDED IN GROUND
 JS4805_STAMPING: DARBY 1946
 JS4805_MARK LOGO: USGS
 JS4805_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
 JS4805
 JS4805  HISTORY     - Date     Condition        Report By
 JS4805  HISTORY     - 1946     MONUMENTED       USGS
 JS4805
 JS4805                          STATION DESCRIPTION
 JS4805
 JS4805'DESCRIBED BY US GEOLOGICAL SURVEY 1946
 JS4805'LOCATED ABOUT 6 MI NE. OF MURPHYS.  ON HIGHEST POINT OF DARBY
 JS4805'MOUNTAIN, 24 FT E. OF CENTERLINE OF DIRT RD., 5 FT N. OF BASE OF
 JS4805'SIGNAL TREE, BUT CENTERED UNDER SIGNAL IN TOP OF TREE.
 JS4805'
 JS4805'TO REACH FROM MURPHYS, GO 0.2 MI E. TO X-RD., THENCE 5.7 MI LEFT
 JS4805'ON STATE HWY. 4.  THENCE RIGHT 200 FT TO RD. FORK, CONTINUE RIGHT
 JS4805'0.7 MI TO TOP OF MOUNTAIN AND STATION.
 JS4805'
 JS4805'STATION MARK--STANDARD TABLET STAMPED---DARBY 1946---, SET IN
 JS4805'CONCRETE POST.
 JS4805'
 JS4805'RM 1--STANDARD RM TABLET STAMPED---NO 1---, SET IN BASE OF 16-INCH
 JS4805'PINE TREE, 10 FT W. OF CENTERLINE OF RD.
 JS4805'
 JS4805'RM 2--STANDARD RM TABLET STAMPED---NO 2---, SET IN BASE OF 18-INCH
 JS4805'PINE TREE.