National Geodetic Survey,   Retrieval Date = MAY 17, 2019
 GO0270 ***********************************************************************
 GO0270  DESIGNATION -  ROOF
 GO0270  PID         -  GO0270
 GO0270  STATE/COUNTY-  AZ/APACHE
 GO0270  COUNTRY     -  US
 GO0270  USGS QUAD   -  ROOF BUTTE (1982)
 GO0270
 GO0270                         *CURRENT SURVEY CONTROL
 GO0270  ______________________________________________________________________
 GO0270* NAD 83(1992) POSITION- 36 27 41.07131(N) 109 05 46.74871(W)   ADJUSTED  
 GO0270* NAVD 88 ORTHO HEIGHT -  2983.1   (meters)     9787.    (feet) VERTCON   
 GO0270  ______________________________________________________________________
 GO0270  GEOID HEIGHT    -        -19.557 (meters)                     GEOID12B
 GO0270  LAPLACE CORR    -         -6.68  (seconds)                    DEFLEC12B
 GO0270  HORZ ORDER      -  THIRD
 GO0270
 GO0270.The horizontal coordinates were established by classical geodetic methods
 GO0270.and adjusted by the National Geodetic Survey in August 1993.
 GO0270.
 GO0270.The NAVD 88 height was computed by applying the VERTCON shift value to
 GO0270.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
 GO0270
 GO0270.Significant digits in the geoid height do not necessarily reflect accuracy.
 GO0270.GEOID12B height accuracy estimate available here.
 GO0270
 GO0270.The Laplace correction was computed from DEFLEC12B derived deflections.
 GO0270
 GO0270. The following values were computed from the NAD 83(1992) position.
 GO0270
 GO0270;                    North         East     Units Scale Factor Converg.
 GO0270;SPC AZ E     -   606,239.747   309,293.242   MT  1.00001335   +0 38 10.1
 GO0270;SPC AZ E     - 1,988,975.55  1,014,741.61   iFT  1.00001335   +0 38 10.1
 GO0270;UTM  12      - 4,036,811.818   670,578.510   MT  0.99995850   +1 07 53.7
 GO0270
 GO0270!             -  Elev Factor  x  Scale Factor =   Combined Factor
 GO0270!SPC AZ E     -   0.99953511  x   1.00001335  =   0.99954845
 GO0270!UTM  12      -   0.99953511  x   0.99995850  =   0.99949363
 GO0270
 GO0270:                Primary Azimuth Mark                     Grid Az
 GO0270:SPC AZ E     -  CLIFF                                    205 10 39.3
 GO0270:UTM  12      -  CLIFF                                    204 40 55.7
 GO0270
 GO0270_U.S. NATIONAL GRID SPATIAL ADDRESS: 12SXF7057836811(NAD 83)
 GO0270
 GO0270|---------------------------------------------------------------------|
 GO0270| PID    Reference Object                     Distance      Geod. Az  |
 GO0270|                                                           dddmmss.s |
 GO0270| GO0247 CLIFF                               APPROX.12.0 KM 2054849.4 |
 GO0270|---------------------------------------------------------------------|
 GO0270
 GO0270                          SUPERSEDED SURVEY CONTROL
 GO0270
 GO0270  NAD 83(1986)-  36 27 41.06953(N)    109 05 46.74968(W) AD(       ) 3
 GO0270  NGVD 29 (08/22/88) 2981.9    (m)         9783.     (f) VERT ANG       
 GO0270
 GO0270.Superseded values are not recommended for survey control.
 GO0270
 GO0270.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 GO0270.See file dsdata.pdf to determine how the superseded data were derived.
 GO0270
 GO0270_MARKER: DS = TRIANGULATION STATION DISK
 GO0270_SETTING: 66 = SET IN ROCK OUTCROP
 GO0270_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
 GO0270+STABILITY: POSITION/ELEVATION WELL
 GO0270
 GO0270  HISTORY     - Date     Condition        Report By
 GO0270  HISTORY     - 1949     MONUMENTED       USGS
 GO0270  HISTORY     - 1953     GOOD             USGS
 GO0270  HISTORY     - 1955     GOOD             USGS
 GO0270
 GO0270                          STATION DESCRIPTION
 GO0270
 GO0270'DESCRIBED BY US GEOLOGICAL SURVEY 1949
 GO0270'LOCATED ABOUT 22 MI S. AND 26 MI W. OF SHIPROCK, NM.  ON NORTH
 GO0270'EDGE OF ROOF BUTTE.
 GO0270'
 GO0270'TO REACH FROM BRIDGE OVER SAN JUAN RIVER AT SHIPROCK, NM, DRIVE
 GO0270'6.3 MI S. ON U.S. HWY. 666 TO UNPAVED RD. W.  TURN W. 21.9 MI TO
 GO0270'RD. FORKS.  TAKE LEFT FORK 0.5 MI TO RED ROCK TRADING POST.  TAKE
 GO0270'RD. 3.4 MI S. TO RD. FORKS.  TAKE LEFT FORK 4.2 MI TO RD. FORKS.
 GO0270'TAKE LEFT FORK 0.4 MI TO RD. FORKS.  TAKE RIGHT FORK 1.6 MI TO RD.
 GO0270'FORKS.  TAKE RIGHT FORK 1.0 MI TO RD. FORKS AND SIGN
 GO0270'COTTONWOOD PASS.  TAKE RIGHT FORK 2.6 MI TO RD. FORKS AND SIGN
 GO0270'ROOF BUTTE L.O. TOWER.  TAKE LEFT FORK 1.7 MI TO RD. FORKS.  TAKE
 GO0270'LEFT FORK 0.7 MI TO RD. FORKS.  TAKE LEFT FORK 0.7 MI TO END OF
 GO0270'RD.  TURN RIGHT 0.1 MI E. TO END OF RD.  CLIMB TRAIL E. TO TOP OF
 GO0270'ROOF BUTTE AND STATION ABOUT 10 FT S. OF NORTH EDGE OF BUTTE.  A
 GO0270'10-MINUTE PACK.
 GO0270'
 GO0270'STATION MARK--STANDARD TABLET STAMPED---ROOF 1949---, IN SOLID
 GO0270'ROCK.
 GO0270'
 GO0270'RM 1--STANDARD RM TABLET STAMPED---1---, IN SOLID ROCK.
 GO0270'
 GO0270'RM 2--NAIL DRIVEN IN CENTER OF 6-INCH TRIANGLE BLAZE IN JUNIPER
 GO0270'TREE.
 GO0270
 GO0270                          STATION RECOVERY (1953)
 GO0270
 GO0270'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1953
 GO0270'RECOVERED AS DESCRIBED BY USGS IN 1949.
 GO0270
 GO0270                          STATION RECOVERY (1955)
 GO0270
 GO0270'RECOVERY NOTE BY US GEOLOGICAL SURVEY 1955
 GO0270'RECOVERED AS DESCRIBED BY USGS.  ALL MARKS IN GOOD CONDITION.