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Details for Benchmark: FV1383

N 35° 42.496 W 120° 16.398 (NAD 83)

Altitude: 1738

Coordinates may not be exact. Altitude is VERTCON and location is ADJUSTED. (more info)

Location:
In SAN LUIS OBISPO county, CA View Original Datasheet
Designation:
WATERHOLE
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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Nice view north up the Cholame Valley and the San Andreas Fault .. too bad it wasn't sunny.

[Photos:]
photoFV1383 - San Luis Obispo County, Ca
View NNW
photoFV1383 - San Luis Obispo County, Ca
RM2
photoFV1383 - San Luis Obispo County, Ca
RM1
photoFV1383 - San Luis Obispo County, Ca
monument
photoFV1383 - San Luis Obispo County, Ca
disc

Found Benchmark and Reference Marks as described. Coordinates right on.

Documented History (by the NGS)

01/01/1932 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1932 (FGJ) ABOUT THREE-EIGHTHS MILE WEST OF FAIR-SIZED WATER HOLE, EAST OF PALO PRIETO CANYON, ON HILL WHICH IS COVERED WITH GRASS AND SCATTERED SAGEBRUSH, AND ON LAND BELONGING TO THE JACK RANCH. THERE IS A SIMILAR KNOB SOUTHWEST OF STATION OF APPROXIMATELY SAME ELEVATION WHICH IS COVERED WITH SCATTERED SMALL OAK TREES ON NORTHERLY APPROACH. TO REACH FROM SHANDON, GO EAST 5.5 MILES ON ROUTE 33 TO BITTERWATER VALLEY ROAD, TURN RIGHT ONTO THIS DIRT ROAD AND GO 2.1 MILES, TURN LEFT ONTO FARM ROAD AND GO 0.4 MILE TO TOP OF GRADE, GO LEFT ACROSS FIELDS ASCENDING RIDGE AND GO GRADUALLY TO NORTHEAST TO STATION SITE. SURFACE AND UNDERGROUND MARKS ARE STANDARD STATION DISKS IN CONCRETE, NOTES 1A AND 7A. REFERENCE MARKS ARE STANDARD REFERENCE DISKS IN CONCRETE, NOTE 11A. NO. 1 IS 8.570 METERS (28.12 FEET) FROM STATION IN AZIMUTH 219 DEG 41 MIN. NO. 2 IS 27.48 METERS (90.2 FEET) FROM STATION IN AZIMUTH 21 DEG 39 MIN.
01/01/1951 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1951 (JCE) STATION AND ALL MARKS WERE RECOVERED AS DESCRIBED AND FOUND IN GOOD CONDITION. MEASUREMENTS AND DIRECTIONS TO MARKS CHECKED WITH PREVIOUS DATA. THE 1932 ROUTE TO STATION IS INADEQUATE. THE NEW ONE FOLLOWS-- TO REACH FROM CHOLAME, GO SW ON STATE HIGHWAY 41 FOR 1.2 MILES TO BITTERWATER VALLEY ROAD ON LEFT. TURN LEFT ON THIS PAVED ROAD FOR 2.1 MILES TO Y-FORK AND TRACK ROAD LEFT. TURN LEFT FOR 0.4 MILE TO TOP OF GRADE, THENCE LEFT (NW) FOR 0.2 MILE TO TOP OF RIDGE AND STATION. OBSERVATIONS TAKEN FROM A 4-FOOT STAND.
01/01/1962 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1962 (JCC) THE STATION, REFERENCE MARKS 1 AND 2 WERE RECOVERED. BENCH MARK D 617 CAN SERVE AS AN AZIMUTH MARK. THERE WAS NO APPARENT DISTRUBANCE OF THE MARKS. FOLLOWING IS A COMPLETE NEW DESCRIPTION. THE STATION IS ABOUT 1-1/2 MILES EAST AND 1 MILE SOUTH OF CHOLAME, 3/4 MILE WEST OF A LARGE WATER HOLE. ON THE SUMMIT OF A GRASS COVERED HILL WHICH IS THE HIGHEST POINT IN THE IMMEDIATE VICINITY. TO REACH THE STATION FROM THE POST OFFICE IN CHOLAME GO SOUTHWESTERLY ON U.S. HIGHWAY 466 AND STATE HIGHWAY 41 FOR 1.0 MILE TO THE BITTER VALLEY ROAD ON THE LEFT AT BENCH MARK D 617. TURN LEFT AND GO EAST AND SOUTHEAST ON THE BITTER VALLEY ROAD FOR 2.1 MILES TO A FORK. TAKE THE LEFT FORK (TRACK ROAD) AND GO UP GRADE FOR 0.4 MILE TO THE TOP OF A GRADE. TURN LEFT AND GO NORTHWEST OF STEEP GRADE FOR 0.2 MILE TO THE STATION. THE STATION MARK IS A STANDARD DISK STAMPED WATERHOLE 1932 SET IN THE TOP OF A 12 BY 12 INCH CONCRETE POST PROJECTING 4 INCHES. IT IS 6 FEET NORTH OF A WITNESS POST. (NOTES 1A AND 7A) REFERENCE MARK 1 IS A STANDARD DISK STAMPED WATERHOLE NO 1 1932 SET IN THE TOP OF A 12 BY 12 INCH CONCRETE POST PROJECTING 2 INCHES. IT IS ABOUT 2 FEET LOWER THAN THE STATION. REFERENCE MARK 2 IS A STANDARD DISK SET IN THE TOP OF A 12 BY 12 INCH CONCRETE POST PROJECTING 2 INCHES. IT IS 6 FEET LOWER THAN THE STATION. BENCH MARK D 617 IS A STANDARD DISK STAMPED D 617 RESET 1953 SET IN THE TOP OF A 6 BY 6 INCH CONCRETE POST PROJECTING 10 INCHES. IT IS 74.4 FEET SOUTHEAST OF THE CENTERLINE OF THE HIGHWAY, 29.6 FEET SOUTH OF A TELEPHONE LINE POLE, 54.5 FEET NORTHEAST OF THE CENTERLINE OF THE BITTER VALLEY ROAD, 2 FEET WEST OF A FENCE AND 1.8 FEET NORTH OF A WITNESS POST.
01/01/1964 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1964 (CAA) THE STATION MARK, REFERENCE MARKS 1 AND 2 WERE RECOVERED AND AND FOUND IN GOOD CONDITION. THE AZIMUTH WAS NOT RECOVERED AT THIS FOR LAC OF INFORMATION ON THIS STATION. THIS STATION WAS INTERSECTED FROM TRIANGULATION STATION TEM-H 1964 AND A GEODIMETER TRAVERSE WAS MADE DISTANCE BEING 43125.9034 METERS. THIS STATION WAS NOT OBSERVED AT THIS TIME. A NEW TO REACH FOLLOWS. TO REACH THE STATION FROM THE POST OFFICE IN CHOLAME, GO WEST ON U.S. HIGHWAY 466 FOR 1.95 MILES TO A SIDE ROAD LEFT, TURN LEFT AND GO SOUTH ON THE MACADAM ROAD FOR 2.05 MILES TO A TRACK ROAD LEFT, TURN LEFT AND GO SOUTHEAST ON THE TRACK ROAD FOR 0.4 MILE TO A TRACK ROAD LEFT, TURN LEFT AND GO NORTH AND WEST UP HILL FOR 0.3 MILE TO THE SUMMIT OF THE HILL AND THE STATION.
01/01/1965 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (CAA) STATION MARK, REFERENCE MARKS 1 AND 2 WERE RECOVERED AND FOUND IN GOOD CONDITION. A GEODIMETER TIE WAS MADE FROM SAN ANDREAS FAULT STATION TEM-H 1964 AT THIS TIME. A SHORTER DISTANCE WAS FOUND IN THE DISTANCE TO THE REFERENCE MARKS. A COMPLETE NEW DESCRIPTION FOLLOWS-- STATION IS LOCATED ABOUT 7 MILES NORTHEAST OF SHANDON, ABOUT 2 MILES SOUTH OF U.S. HIGHWAY 466 AND ABOUT 1-3/4 MILES SOUTHEAST OF CHOLAME ON A GRASSY HILL. TO REACH FROM THE CHOLAME POST OFFICE, GO SOUTHWEST ON U.S. HIGHWAY 466 FOR 1.3 MILES TO A SIDE ROAD LEFT AND SIGN BITTERWATER VALLEY, TURN LEFT AND GO EASTERLY 0.3 MILE TO BRIDGE, CONTINUE EASTERLY FOLLOWING MAIN ROAD FOR 2.2 MILES TO FORK, KEEP LEFT OFF MAIN ROAD AND GO 0.45 MILES TO A DIM TRACK ROAD LEFT, KEEP LEFT AND GO NORTHERLY UP STEEP RIDGE FOR 0.15 MILE TO TOP OF HILL AND STATION AS DESCRIBED. STATION MARK, A STANDARD TRIANGULATION DISK STAMPED WATERHOLE 1932, IS SET IN THE TOP OF A SQUARE CONCRETE POST WHICH PROJECTS ABOUT 4 INCHES ABOVE THE SURFACE OF THE GROUND. (NOTE 1A-7A). THE MARK IS ON THE HIGHEST PART OF HILL AND 6.0 FEET NORTH OF THE WITNESS POST. REFERENCE MARK 1, A STANDARD REFERENCE DISK STAMPED WATERHOLE NO 1 1932, IS SET IN THE TOP OF A SQUARE CONCRETE POST WHICH PROJECTS ABOUT 2 INCHES ABOVE THE SURFACE OF THE GROUND. (NOTE 11A). THE MARK IS 31.6 FEET NORTHEAST OF THE WITNESS POST AND ABOUT 1.5 FEET LOWER IN ELEVATION THAN THE STATION MARK. REFERENCE MARK 2, A STANDARD REFERENCE DISK STAMPED WATERHOLE NO 2 1932, IS SET IN THE TOP OF A SQUARE CONCRETE POST WHICH PROJECTS ABOUT 3 INCHES ABOVE THE SURFACE OF THE GROUND. THE MARK IS 86.3 FEET SOUTHWEST OF THE WITNESS POST, IN CENTER OF A SMALL RIDGE AND IS ABOUT 6 FEET LOWER IN ELEVATION THAN THE STATION MARK. (NOTE 11A). HEIGHT OF LIGHT ABOVE STATION MARK 1 METERS.
01/01/1966 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 (CAA) THE STATION MARK, REFERENCE MARKS 1 AND 2, AND THE AZIMUTH MARK WERE RECOVERED AS DESCRIBED AND FOUND TO BE IN GOOD CONDITION. DUE TO A CHANGE IN THE ROUTE TO THE STATION, A NEW DESCRIPTION FOLLOWS. THE STATION IS ABOUT 2.0 MILES SOUTHEAST OF CHOLAME, 3/4 MILE WEST OF A WATER HOLE AND ON THE SUMMIT OF A GRASS COVERED HILL. TO REACH THE STATION FROM THE POST OFFICE IN CHOLAME, GO SOUTHWEST ON STATE HIGHWAYS 46 AND 41 FOR 1.3 MILES TO BITTER VALLEY ROAD AND BENCH MARK D 617 (AZIMUTH MARK) ON THE LEFT. TURN LEFT, EAST, ON BITTER VALLEY ROAD FOR 2.1 MILES TO A FORK. TAKE LEFT FORK, EASTERLY, FOR 0.4 MILE TO A FORK. TAKE LEFT FORK, NORTHWEST, UP STEEP HILL FOR 0.3 MILE TO THE STATION. THE STATION MARK IS A STANDARD DISK, SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT. IT IS STAMPED WATERHOLE 1932 AND PROJECTS 3 INCHES. IT IS 6.2 FEET NORTH OF A METAL WITNESS POST. REFERENCE MARK 1 IS A STANDARD DISK SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT. IT IS STAMPED WATERHOLE NO 1 1932 AND PROJECTS 2 INCHES. IT IS 32 FEET NORTH-NORTHEAST OF A METAL WITNESS POST. REFERENCE MARK 2 IS A STANDARD DISK, SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT. IT IS STAMPED WATERHOLE NO 2 1932 AND PROJECTS 2 INCHES. BENCH MARK D 617 IS A STANDARD DISK SET IN THE TOP OF A 6-INCH SQUARE CONCRETE MONUMENT. IT IS STAMPED D 617 RESET 1953 AND PROJECTS 10 INCHES. IT IS 74.5 FEET SOUTHEAST OF THE CENTER OF THE HIGHWAY, 55.0 FEET NORTHEAST OF THE CENTER OF BITTER VALLEY ROAD, 29.6 FEET SOUTH OF A TELEPHONE POLE, 2.0 FEET WEST OF A FENCE, AND 1.7 FEET NORTH OF A METAL WITNESS POST. NO NOTICEABLE DISPLACEMENT WAS NOTED IN THE VICINITY OF THE STATION. HEIGHT OF LIGHT ABOVE STATION MARK 4.5 FEET. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--2.0 MILES SOUTHEAST OF CHOLAME
01/01/1971 by NGS (MONUMENTED)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 (WLB) THE STATION AND BOTH REFERENCE MARKS WERE RECOVERED AND FOUND IN GOOD CONDITION. A DIFFERENCE OF 4 DEGREES 59 MINUTES AND 34 SECONDS IN DIRECTION TO REFERENCE MARK 2 WAS NOTED. ALL OTHER DISTANCES AND DIRECTIONS WERE WITHIN CLOSE AGREEMENT WITH THE 1965 OBSERVATIONS. THERE IS NO AZIMUTH MARK AT THIS STATION. A COMPLETE NEW DESCRIPTION OF THE STATION FOLLOWS. THE STATION IS LOCATED 7 MILES NORTHEAST OF SHANDON, 2 MILES SOUTH OF CHOLAME, 2 MILES SOUTH OF STATE HIGHWAY 46 AND ON THE TOP OF A GRASS COVERED RIDGE. THE PROPERTY IS OWNED BY THE HEARST CORPORATION. TO REACH THE STATION FROM THE POST OFFICE IN CHOLAME, GO WESTERLY ON STATE HIGHWAY 46 FOR 1.2 MILES TO A SIDE ROAD LEFT AT SIGN BITTERWATER VALLEY. TURN LEFT AND GO SOUTHERLY ON THE PAVED ROAD FOR 0.3 MILE TO A BRIDGE. CONTINUE SOUTHERLY ON THE PAVED ROAD FOR 0.45 MILE TO A FORK. KEEP LEFT AND CONTINUE SOUTHERLY ON THE PAVED ROAD FOR 1.25 MILES TO A FORK. KEEP LEFT AND GO EASTERLY UPHILL ON A TRACK ROAD FOR 0.4 MILE TO A STEEP HILL ON THE LEFT. BEAR LEFT AND GO NORTHEAST AND NORTHWEST UPHILL FOR 0.2 MILE TO THE TOP OF THE RIDGE AND THE STATION. THE STATION MARK IS A STANDARD DISK STAMPED WATERHOLE 1932, SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT WHICH PROJECTS 6 INCHES. IT IS 20 FEET SOUTH OF THE NORTH EDGE OF THE RIDGE AND 6.0 FEET NORTH OF A WITNESS POST. (NOTE 1. 7A) REFERENCE MARK 1 IS A STANDARD DISK STAMPED WATERHOLE NO 1 1932, SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT WHICH PROJECTS 4 INCHES AND ABOUT 1 FOOT LOWER THAN THE STATION. IT IS 40 FEET SOUTHEAST OF THE NORTH EDGE OF THE RIDGE AND 31.8 FEET NORTHEAST OF THE WITNESS POST. (NOTE 11A) REFERENCE MARK 2 IS A STANDARD DISK STAMPED WATERHOLE NO 2 1932, SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT WHICH PROJECTS 4 INCHES AND IT IS ABOUT 5 FEET LOWER THAN THE STATION. IT IS 86 FEET SOUTHWEST OF THE WITNESS POST AND 10 FEET SOUTH OF THE NORTH EDGE OF THE RIDGE. (NOTE 11A) NO NOTICEABLE EARTH MOVEMENT IN THE AREA OF THIS STATION. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--1-3/4 MILES SE OF CHOLAME
01/01/1973 by NGS (MONUMENTED)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1973 (LJW) ALL MARKS RECOVERED AS DESCRIBED AND IN GOOD CONDITION EXCEPT BENCH MARK D-617 (AZIMUTH MARK) HAS BEEN DESTROYED. HEIGHT OF LIGHT ABOVE STATION MARK 5.30 FEET.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in June 1996. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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