HT3417 ***********************************************************************
HT3417  DESIGNATION -  COYOTE RIDGE 2 RESET
HT3417  PID         -  HT3417
HT3417  STATE/COUNTY-  CA/MARIN
HT3417  USGS QUAD   -  POINT BONITA (1993)
HT3417
HT3417                         *CURRENT SURVEY CONTROL
HT3417  ___________________________________________________________________
HT3417* NAD 83(1992)-  37 51 59.28592(N)    122 33 08.78413(W)     ADJUSTED
HT3417* NAVD 88     -       314.8    (meters)    1033.     (feet)  VERTCON
HT3417  ___________________________________________________________________
HT3417  EPOCH DATE  -        1991.35
HT3417  LAPLACE CORR-           2.96  (seconds)                    DEFLEC99
HT3417  GEOID HEIGHT-         -32.40  (meters)                     GEOID99
HT3417
HT3417  HORZ ORDER  -  SECOND
HT3417
HT3417.The horizontal coordinates were established by classical geodetic methods
HT3417.and adjusted by the National Geodetic Survey in March 1994.
HT3417.The horizontal coordinates are valid at the epoch date displayed above.
HT3417.The epoch date for horizontal control is a decimal equivalence
HT3417.of Year/Month/Day.
HT3417
HT3417.The NAVD 88 height was computed by applying the VERTCON shift value to
HT3417.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
HT3417
HT3417.The Laplace correction was computed from DEFLEC99 derived deflections.
HT3417
HT3417.The geoid height was determined by GEOID99.
HT3417
HT3417;                    North         East     Units   Scale      Converg.
HT3417;SPC CA 3     - 2,144,459.31  5,969,245.47   sFT  0.99993120 -1 15 23.7
HT3417;SPC CA 3     -   653,632.505 1,819,429.657   MT  0.99993120 -1 15 23.7
HT3417;UTM  10      - 4,191,093.947   539,365.812   MT  0.99961909 +0 16 29.0
HT3417
HT3417:                Primary Azimuth Mark                     Grid Az
HT3417:SPC CA 3     -  GREEN GULCH                              344 38 10.7
HT3417:UTM  10      -  GREEN GULCH                              343 06 18.0
HT3417
HT3417|---------------------------------------------------------------------|
HT3417| PID    Reference Object                     Distance      Geod. Az  |
HT3417|                                                           dddmmss.s |
HT3417|        COYOTE RIDGE 2 RM 2                   3.926 METERS 03254     |
HT3417| HT3153 STRAWBERRY HILL 2 RESET                            07323     |
HT3417|        COYOTE RIDGE 2 RM 1                   4.456 METERS 08022     |
HT3417| HT3100 RICHARDSON EAST RESET                              10935     |
HT3417|        COYOTE RIDGE 2 RM 3                   4.782 METERS 14218     |
HT3417| HT3415 ELK RESET                                          18324     |
HT3417| AA8970 LITTLE LAGOON RESET                                26144     |
HT3417| HT3380 MOUNT TAMALPAIS                                    32842     |
HT3417| HT3420 GREEN GULCH                         APPROX. 0.5 KM 3432247.0 |
HT3417|---------------------------------------------------------------------|
HT3417
HT3417                          SUPERSEDED SURVEY CONTROL
HT3417
HT3417  NAD 83(1986)-  37 51 59.28192(N)    122 33 08.77854(W) AD(1984.00) 2
HT3417  NAD 27      -  37 51 59.54200(N)    122 33 04.87700(W) AD(       ) 2
HT3417  NGVD 29     -       314.0    (m)         1030.     (f) VERT ANG
HT3417
HT3417.Superseded values are not recommended for survey control.
HT3417.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HT3417.See file dsdata.txt to determine how the superseded data were derived.
HT3417
HT3417  HISTORY     - Date     Condition        Recov. By
HT3417  HISTORY     - 1972     MONUMENTED       NGS
HT3417  HISTORY     - 1932     MONUMENTED       CGS
HT3417  HISTORY     - 1935     MONUMENTED       CGS
HT3417  HISTORY     - 1944     MONUMENTED       CGS
HT3417  HISTORY     - 1952     MONUMENTED       CGS
HT3417  HISTORY     - 1952     MONUMENTED       CGS
HT3417  HISTORY     - 1955     MONUMENTED       CGS
HT3417  HISTORY     - 1958     MONUMENTED       USGS
HT3417  HISTORY     - 1959     MONUMENTED       CGS
HT3417  HISTORY     - 1972     MONUMENTED       NGS
HT3417  HISTORY     - 1972     MONUMENTED       NGS
HT3417
HT3417                          STATION DESCRIPTION
HT3417
HT3417''DESCRIBED BY COAST AND GEODETIC SURVEY 1932
HT3417''STATION IS ON SOUTHERN EXTREMITY OF HIGHEST RIDGE W OF ELK
HT3417''VALLEY.  TO REACH FROM FERRY LANDING AT SAUSALITO, GO 2.8
HT3417''MILES ON ROUTE 101, TAKE RIGHT FORK AT LARGE SIGN MILL VALLEY
HT3417''ROAD JUST BEFORE ARRIVING AT BRIDGE APPROACH AND FOLLOW ROAD
HT3417''0.8 MILE, TURN LEFT ONTO TAMALPAIS ROAD AND GO 2.4 MILES,
HT3417''TURN LEFT OFF TAMALPAIN ROAD AND GO 0.4 MILE TO SUMMIT OF
HT3417''RIDGE AND W END OF GROVE OF TREES ON LEFT OF ROAD, AND FOLLOW
HT3417''FENCE LINE UP RIDGE TO S ABOUT 1.0 MILE TO STATION SITE ON
HT3417''HIGHEST AND SOUTHERNMOST HILL.  MARKED BY STANDARD STATION
HT3417''DISK IN CONCRETE, AS DESCRIBED IN NOTE 1A.  REFERENCE MARK
HT3417''NO. 1 IS STANDARD REFERENCE DISK IN BEDROCK AS DESCRIBED IN
HT3417''NOTE 12B, 4.456 METERS (14.62 FEET) FROM STATION IN
HT3417''AZIMUTH 260 DEG 22 MIN.  REFERENCE MARK NO. 2 IS
HT3417''CROSS ON GALVANIZED PIPE, 3.930 METERS (12.89 FEET) FROM
HT3417''STATION IN AZIMUTH 212 DEG 53 MIN.
HT3417
HT3417                          STATION RECOVERY (1935)
HT3417
HT3417''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1935 (FHH)
HT3417''THIS STATION WAS NOT VISITED BUT THERE IS A WOODEN THEODOLITE
HT3417''TRIPOD OVER THE STATION AND THIS WAS FOUND TO AGREE WITH
HT3417''PLANETABLE CUTS TAKEN FROM TRIANGULATION STATION LITTLE LAGOON 1916
HT3417''AND SEVERAL TRAVERSE POSITIONS.
HT3417
HT3417                          STATION RECOVERY (1944)
HT3417
HT3417''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1944 (EHP)
HT3417''RECOVERED AS DESCRIBED.  TO REACH STATION FROM SAN FRANCISCO,
HT3417''GO N ON U.S. HIGHWAY 101 TO JUNCTION WITH STATE HIGHWAY 1,
HT3417''JUST S OF THE BRIDGE OVER RICHARDSON BAY.  FOLLOW HIGHWAY 1
HT3417''FOR 1.0 MILE, TURN LEFT AND, STILL ON HIGHWAY 1, PROCEED
HT3417''2.8 MILES TO JUNCTION WITH STINSON BEACH ROAD.  TAKE STINSON
HT3417''BEACH ROAD FOR 0.4 MILE TO THE W END OF GROVE OF TREES ON
HT3417''LEFT OF ROAD.  ON FOOT FOLLOW THE ROAD THROUGH THE TREES AND
HT3417''ALONG THE E SIDE OF THE RIDGE ABOUT 1-1/2 MILES TO STATION
HT3417''ON HIGHEST AND MOST S HILL.
HT3417
HT3417                          STATION RECOVERY (1952)
HT3417
HT3417''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (RAM)
HT3417''THE STATION MARK AND REFERENCE MARK 2 WERE RECOVERED AS
HT3417''DESCRIBED IN GOOD CONDITION.
HT3417''
HT3417''THE DISK FOR REFERENCE MARK 1 WAS FOUND LYING ON THE GROUND IN
HT3417''THE VICINITY OF THE BEDROCK, WHERE THE REFERENCE MARK WAS
HT3417''ORIGINALLY LOCATED.  THE SURFACE OF THE BEDROCK HAS BEEN
HT3417''BROKEN.
HT3417
HT3417                          STATION RECOVERY (1952)
HT3417
HT3417''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (WHB)
HT3417''THE STATION WAS FOUND AS DESCRIBED.  ALL MARKS IN GOOD
HT3417''CONDITION.  THE DESCRIPTION IS GOOD.
HT3417''
HT3417''THE PROPERTY THAT THE STATION IS ON NOW BELONGS TO MR. GEORGE
HT3417''WHEELWRIGHT AND IS CALLED THE GREEN GULCH RANCH.  THE RANCH
HT3417''BUILDINGS ARE THE FIRST BUILDINGS DOWN GRADE TOWARD THE OCEAN
HT3417''FROM THE GROVE OF TREES AND LOCKED GATE IN THE PASS.  PERMISSION
HT3417''TO ENTER AND THE KEY TO THE GATE SHOULD BE SECURED FROM MR.
HT3417''WHEELWRIGHT.
HT3417
HT3417                          STATION RECOVERY (1955)
HT3417
HT3417''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1955 (CAS)
HT3417''STANDARD STATION DISK AND REFERENCE MARK 1 WERE NOT RECOVERED.
HT3417''STATION MARK HAD BEEN REMOVED FROM CONCRETE AND WAS FOUND LYING
HT3417''NEARBY.  REFERENCE MARK 2 IS STILL IN PLACE.
HT3417
HT3417                          STATION RECOVERY (1958)
HT3417
HT3417''RECOVERY NOTE BY US GEOLOGICAL SURVEY 1958
HT3417''STATION MARKER HAS BEEN REMOVED.  CONCRETE POST FOUND.
HT3417''
HT3417''DISTANCE AND AZIMUTH WAS CHECKED FROM REFERENCE MARK 2 AND
HT3417''FOUND TO BE CORRECT.  REFERENCE MARK 2 WAS CONTROLLED AND AN
HT3417''INSTRUMENT STAND WAS BUILT OVER MARKER.
HT3417
HT3417                          STATION RECOVERY (1959)
HT3417
HT3417''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (JCM)
HT3417''AS MENTIONED IN THE 1952 DESCRIPTION REFERENCE MARK NUMBER 1
HT3417''IS MISSING.  REFERENCE MARK NUMBER 2, A CROSS ON TOP OF A PIPE
HT3417''CAP THAT IS STAMPED COYOTE RIDGE 2 NO 2 1895, WAS RECOVERED
HT3417''IN GOOD CONDITION.  THE TOP OF THE CONCRETE POST OF THE
HT3417''SURFACE-STATION MARK WAS FOUND BROKEN OFF AND THE STATION DISK
HT3417''WAS GONE.  NO UNDERGROUND-STATION MARK WAS MENTIONED AS BEING
HT3417''SET IN 1916 AND NONE WAS FOUND BY DIGGING BELOW THE REMNANT
HT3417''OF THE STATION POST.  STATION LOST.
HT3417
HT3417                          STATION RECOVERY (1972)
HT3417
HT3417''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1972 (LFS)
HT3417''REFERENCE MARK 2 WAS RECOVERED IN GOOD CONDITION.  THE STATION
HT3417''MARK WAS REESTABLISHED USING THE DISTANCE TO REFERENCE MARK
HT3417''2 AND THE DIRECTIONS TO REFERENCE MARK 2 AND TRIANGULATION
HT3417''STATIONS RING 1932, RICHARDSON EAST 1895 AND LITTLE LAGOON 1916.
HT3417''REFERENCE MARK 3 WAS SET AND GREEN GULCH (CDH) WAS ESTABLISHED
HT3417''AS AN AZIMUTH MARK ON THIS DATE.  A COMPLETE DESCRIPTION
HT3417''FOLLOWS--
HT3417''
HT3417''THE STATION IS LOCATED ON THE TOP OF A GRASSY KNOLL ON THE
HT3417''HIGHEST POINT OF COYOTE RIDGE, A NORTH-SOUTH RIDGE BETWEEN
HT3417''TENNESSEE VALLEY ON THE SOUTHEAST AND GREEN GULCH ON THE
HT3417''NORTHWEST AND IS AIRLINE ABOUT 3 MILES SOUTH OF MILL VALLEY,
HT3417''2-1/2 MILES WEST OF MARIN CITY AND 1-1/2 MILES EAST-NORTHEAST
HT3417''OF MUIR BEACH.
HT3417''
HT3417''TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAY 101
HT3417''AND STATE HIGHWAY 1 ABOUT 4 MILES NORTH OF THE NORTH END OF
HT3417''THE GOLDEN GATE BRIDGE GO WESTERLY ON STATE HIGHWAY 1 FOR 5.5
HT3417''MILES TO A SIDE ROAD ON THE LEFT AT A SIGN GREEN GULCH RANCH.
HT3417''TURN SHARP LEFT AND GO EASTERLY 0.35 MILE TO A SIDE ROAD AND
HT3417''TWO GATES ON THE LEFT.  (FOR PERMISSION TO ENTER CONTINUE
HT3417''STRAIGHT AHEAD 0.1 MILE TO THE RANCH OFFICE.) TURN LEFT, PASS
HT3417''THROUGH THE GATES AND GO EASTERLY 0.65 MILE TO A FORK.  TAKE
HT3417''THE RIGHT AND CONTINUE EASTERLY 0.55 MILE TO A FORK AT THE
HT3417''TOP OF THE RIDGE.  TURN LEFT AND GO NORTH ALONG THE RIDGE
HT3417''0.3 MILE TO THE HIGHEST POINT AND THE STATION SITE.
HT3417''
HT3417''THE UNDERGROUND STATION MARK SET ON THIS DATE IS A NGS HORIZONTAL
HT3417''CONTROL DISK STAMPED COYOTE RIDGE 2 1916 1972 SET IN THE TOP
HT3417''OF A BLOCK OF CONCRETE 3.1 FEET BELOW THE SURFACE OF THE GROUND.
HT3417''
HT3417''THE SURFACE STATION MARK SET ON THIS DATE IS A NGS HORIZONTAL
HT3417''CONTROL DISK STAMPED COYOTE RIDGE 2 1916 1972 SET IN THE TOP OF
HT3417''A 12-INCH CONCRETE CYLINDER PROJECTING 0.1 FOOT ABOVE THE GROUND
HT3417''AND IS 14.8 FEET WEST OF AND ABOUT 2 FEET LOWER THAN THE TOP
HT3417''OF A ROCK THAT IS THE HIGHEST POINT OF THE KNOLL, 13.5 FEET
HT3417''NORTHWEST OF A METAL WITNESS POST SET IN A FENCE LINE AND 13.1
HT3417''FEET NORTHWEST OF THE FENCE LINE.
HT3417''
HT3417''REFERENCE MARK 2 IS A GALVANIZED IRON PIPE CAP WITH A PUNCH
HT3417''MARK IN ITS CENTER, STAMPED COYOTE RIDGE 2 NO 2 1895, ATTACHED
HT3417''TO THE TOP OF A 1-INCH IRON PIPE PROJECTING 0.2 FOOT ABOVE
HT3417''THE GROUND AND IS 9.4 FEET NORTHWEST OF THE FENCE LINE, 19.0
HT3417''FEET NORTH OF THE METAL WITNESS POST AND ABOUT THE SAME
HT3417''ELEVATION AS THE STATION MARK.
HT3417''
HT3417''REFERENCE MARK 3 IS A NGS REFERENCE MARK DISK STAMPED COYOTE
HT3417''RIDGE 2 1916 NO 3 1972 SET IN THE TOP OF A 12-INCH CONCRETE
HT3417''CYLINDER FLUSH WITH THE GROUND AND IS 4.8 FEET SOUTHWEST OF
HT3417''THE METAL WITNESS POST, 0.5 FOOT NORTHWEST OF THE FENCE LINE
HT3417''AND ABOUT THE SAME ELEVATION AS THE STATION MARK.
HT3417''
HT3417''THE AZIMUTH MARK ESTABLISHED ON THIS DATE IS A CALIFORNIA
HT3417''DIVISION OF HIGHWAYS STATION MARK DISK STAMPED GREEN GULCH
HT3417''1972 SET IN THE TOP OF A 12-INCH CONCRETE CYLINDER PROJECTING
HT3417''0.1 FOOT ABOVE THE GROUND AND IS ON TOP OF A GRASSY KNOLL
HT3417''ON THE RIDGE RUNNING NORTH FROM THE STATION SITE.  IT IS 80 YARDS
HT3417''EAST OF A GATE IN A SADDLE AND 18.7 FEET SOUTH-SOUTHWEST OF THE
HT3417''WEST BRACE POST OF A FENCE LINE.
HT3417''
HT3417''TO REACH THE AZIMUTH MARK FROM THE STATION GO SOUTH 0.3 MILE
HT3417''TO A FORK.  TURN RIGHT AND GO NORTH-NORTHWEST 0.3 MILE TO A
HT3417''FORK AT A SMALL METAL WATER TANK.  TAKE THE RIGHT FORK AND
HT3417''GO NORTH ALONG THE WEST SIDE OF THE RIDGE 0.3 MILE TO THE
HT3417''TOP OF A KNOLL AND THE MARK.
HT3417''
HT3417''AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--1-1/2 MILES
HT3417''ENE OF MUIR BEACH
HT3417
HT3417                          STATION RECOVERY (1972)
HT3417
HT3417''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1972 (RM)
HT3417''THIS STATION WAS RESET IN 1972 BY L.F. SMITH AND THE DESCRIPTION
HT3417''WRITTEN AT THAT TIME IS COMPLETE AND ADEQUATE.
HT3417''
HT3417''AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--1-1/2 MILES
HT3417''EAST NORTHEAST OF MUIR BEACH