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Details for Benchmark: FV1456

N 35° 22.907 W 120° 36.926 (NAD 83)

Altitude: 1203

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:
SANTA MARGUERITA
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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Another nice climb to a beautiful view.

[Photos:]
photoFV1456 - Sata Marguerita, Ca
photoFV1456 - RM1
photoFV1456 - RM2
photoFV1456 - View to RM1
photoFV1456 - View to RM2

Documented History (by the NGS)

01/01/1932 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1932 (FGJ) ABOUT THREE-FOURTHS MILE SOUTH OF WEST OF SANTA MARGARITA, ON HILL ABOUT ONE-FOURTH MILE SOUTH OF ROUTE 101, ABOUT 40 FEET EAST OF TWO LARGE OAK STUMPS, AND ON LAND BELONGING TO THE SANTA MARGARITA LAND AND CATTLE CO. TO REACH FROM DEPOT IN SANTA MARGARITA, GO SOUTH 0.6 MILE ON ROUTE 101 AND TURN LEFT ACROSS RAILROAD TRACKS, TURN RIGHT THROUGH GATE OF CORRAL ADJOINING TRACKS AND GO SOUTHEAST THROUGH CORRAL TO STATION SITE. MARKED BY STANDARD STATION DISK, NOTE 4, IN BURIED BOULDER WHICH PROJECTS ABOUT 8 INCHES. REFERENCE MARKS ARE STANDARD REFERENCE DISKS IN BEDROCK, NOTE 12A. NO. 1 IS 14.205 METERS (46.60 FEET) FROM STATION IN AZIMUTH 241 DEG 49 MIN. NO. 2 IS 28.187 METERS (92.48 FEET) FROM STATION IN AZIMUTH 334 DEG 21 MIN.
01/01/1944 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1944 (JCS) THIS STATION WAS RECOVERED AS DESCRIBED AND FOUND IN GOOD CONDITION. THE STATION WAS VISITED ONLY BY A LIGHT KEEPER AND THE DISTANCES AND DIRECTIONS TO THE REFERENCE MARKS WERE NOT CHECKED.
01/01/1951 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1951 (JCE) STATION AND REFERENCE MARKS WERE RECOVERED AS DESCRIBED AND FOUND IN GOOD CONDITION. THE DISTANCES TO REFERENCE MARKS CHECKED WITH THE 1932 DATA, HOWEVER, THE AZIMUTH OF R.M. 1 WAS FOUND TO BE 241 DEG 41 MIN INSTEAD OF 241 DEG 49 MIN. THE DESCRIPTION OF THE ROUTE TO THE STATION AS PUBLISHED IN THE 1932 DATA IS ADEQUATE. STATION MAY BE DRIVEN USING A 4-WHEEL DRIVE VEHICLE. OBSERVATIONS WERE TAKEN FROM A 4-FOOT STAND.
01/01/1952 by AMS (MONUMENTED)
RECOVERY NOTE BY US ARMY MAP SERVICE (NOW DMA) 1952 THE MARK IS A STANDARD BRONZE TRIANGULATION DISK SET IN A DRILL HOLE IN BEDROCK AND PROJECTS ABOUT 0.3 FT., STAMPED SANTA MARGUERITA 1932. REFERENCE MARK 1 IS A STANDARD U.S.C. AND G.S. REFERENCE MARK SET IN A DRILL HOLE IN BEDROCK, STAMPED SANTA MARGUERITA NO 1 1932. PROJECTS ABOUT 0.3 FT. REFERENCE MARK 2 IS A STANDARD U.S.C. AND G.S. REFERENCE MARK SET IN A DRILL HOLE IN BEDROCK, STAMPED SANTA MARGUERITA NO 2 1932. PROJECTS ABOUT 0.3 FT. DESCRIPTION AND TO REACH IS ADEQUATE. VIEW FROM TRIPOD HEIGHT IS CLEAR EXCEPT FOR TREES TO THE W, N, NE AND E.
01/01/1962 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1962 (JCC) STATION AND ALL MARKS WERE RECOVERED AS PREVIOUSLY DESCRIBED. BENCH MARK H 903 WAS USED FOR AN AZIMUTH MARK. FOLLOWING IS AN ALTERNATE ROUTE TO THE STATION AND A COMPLETE DESCRIPTION OF THE BENCH MARK. TO REACH THE STATION FROM THE POST OFFICE IN SANTA MARGARITA, GO WESTERLY ON THE MAIN STREET FOR 0.55 MILE TO A SIDE ROAD LEFT. TURN LEFT, SOUTHERLY ON PAVED ROAD FOR 0.15 MILE TO WHERE THE ROAD TURNS SHARP LEFT AND END OF TRUCK TRAVEL. FROM HERE PACK SOUTH-SOUTHWEST UP HILL FOR ABOUT 0.3 MILE TO THE HIGHEST POINT AND STATION. ABOUT A 15 MINUTE PACK. TO REACH THE BENCH MARK FROM THE POST OFFICE IN SANTA MARGARITA, GO EASTERLY ON THE MAIN STREET FOR 0.25 MILE TO A SIDE ROAD RIGHT. TURN RIGHT, SOUTHEASTERLY ON POZO ROAD FOR 1.75 MILES TO THE TOP OF A LOW RISE AND THE BENCH MARK ON THE RIGHT. BENCH MARK H 903 IS A STANDARD DISK, STAMPED H 903 1957, SET IN THE TOP OF AN 11 INCH ROUND CONCRETE POST PROJECTING 4 INCHES. IT IS 26 FEET SOUTH OF THE CENTERLINE OF POZO ROAD, 4 FEET NORTH OF A FENCE, 3 FEET WEST OF A TELEPHONE LINE POLE NUMBER 021 AND 2 FEET EAST OF A WITNESS POST. NO NOTICEABLE DISPLACEMENT OF ANY OF THE MARKS.
01/01/1974 by NGS (MONUMENTED)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1974 (LDK) RECOVERED THE STATION MARK AND REFERENCE MARKS 1 AND 2 IN GOOD CONDITION AS DESCRIBED. THE DESCRIPTION TO REACH WAS ADEQUATE. HEIGHT OF LIGHT ABOVE STATION MARK 5.5 FEET. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN 3/4 MILE SOUTHWEST OF SANTA MARGARITA.

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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