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Details for Benchmark: JS4153

N 38° 50.047 W 121° 15.907 (NAD 83)

Altitude: 387

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

Location:
In PLACER county, CA View Original Datasheet
Designation:
HORSESHOE
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Reference Points

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Documented History (by the NGS)

01/01/1954 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1954 (LSB) THE STATION IS LOCATED ON THE PROPERTY OF THE HORSESHOE CATTLE COMPANY, ON THE SUMMIT OF A BALD, ROCKY-TOPPED HILL. IT IS ABOUT 5-1/4 MILES AIRLINE NORTH-NORTHEAST OF ROSEVILLE, ABOUT 4 MILES AIRLINE SOUTH-SOUTHEAST OF LINCOLN, AND ABOUT 1 MILE AIRLINE NORTHWEST OF THE HEADQUARTERS BUILDING OF THE HORSESHOE CATTLE COMPANY. TO REACH THE STATION FROM THE POST OFFICE IN ROSEVILLE GO SOUTH, EAST, AND THEN NORTH ON U.S. HIGHWAY 99E FOR 5.3 MILES TO A T-ROAD RIGHT, AND A SIGN HORSESHOE CATTLE CO. TURN RIGHT, EAST, AND GO 3.7 MILES TO THE HEADQUARTERS BUILDING OF THE HORSESHOE CATTLE COMPANY, AND A DIRT T-ROAD LEFT. TURN LEFT, NORTH, PASSING THROUGH 2 WIRE GATES, AND GO 0.8 MILE TO THE AZIMUTH MARK ON THE LEFT. TURN LEFT, SOUTHWEST, AND GO, CROSS COUNTRY, 0.3 MILE TO THE STATION. THE STATION IS A STANDARD DISK, STAMPED HORSESHOE 1954, AND SET IN A DRILL HOLE IN A BOULDER THAT PROJECTS 4 INCHES. IT IS 8 FEET SOUTH OF A WITNESS POST. REFERENCE MARK 1 IS A STANDARD DISK, STAMPED HORSESHOE NO 1 1954 AND SET IN A DRILL HOLE IN A BOULDER THAT PROJECTS 2 INCHES. IT IS 1-1/2 FEET LOWER THAN THE STATION. TELEGRAPH HILL (USGS) IS A STANDARD USGS DISK, UNSTAMPED, AND SET IN A DRILL HOLE IN THE SOUTH FACE OF A LARGE BOULDER THAT IS THE SOUTH BASE OF A 5-FOOT CAIRN. IT IS 12 FEET NORTHEAST OF THE WITNESS POST, AND 2 FEET HIGHER THAN THE STATION. THE AZIMUTH MARK IS A STANDARD DISK, STAMPED HORSESHOE 1954, AND SET IN A DRILL HOLE IN A BOULDER THAT PROJECTS 14 INCHES. IT IS 60 FEET WEST OF THE CENTER LINE OF THE ROAD, AND 3 FEET WEST OF A WITNESS POST. HEIGHT OF LIGHT ABOVE STATION MARK 2 METERS.
01/01/1971 by NGS (MONUMENTED)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 (LFS) THE STATION MARK, AZIMUTH MARK, REFERENCE MARK 1 AND TELEGRAPH HILL (USGS) 1954 WERE RECOVERED IN GOOD CONDITION AND THE DISTANCES AND DIRECTIONS TO REFERENCE MARK 1 AND TELEGRAPH HILL (USGS) 1954 MEASURED ON THIS DATE AGREED WITH THE 1954 MEASUREMENTS. THE 1954 DESCRIPTION IS ADEQUATE.
01/01/1975 by CA-061 (MONUMENTED)
RECOVERY NOTE BY PLACER COUNTY CALIFORNIA 1975 HORSESHOE 1954-GOOD HORSESHOE NO 1 1954-GOOD AZ. HORSESHOE 1954-GOOD LOCATION AS DESCRIBED

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. 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 orthometric height was scaled from a topographic map.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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