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Details for Benchmark: JS0766

N 38° 49.233 W 121° 11.600 (NAD 83)

Altitude: 401.17

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

Location:
In PLACER county, CA View Original Datasheet
Designation:
W 45 USGS
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Found where described

[Photos:]
photoW45 USGS
photoeye level
photofor reference

N 38° 49.252 W 121° 11.625

On the horizontal surface between the bench and the building and about one foot above the sidewalk.

[Photos:]
photoBM JS0766

Found with the updated coords.

Out grabbing some benchmarks. Found at N38° 49.255 W121° 11.631

*´¨) Thanks for the cache
¸.•´¸.•*´¨) ¸.•*¨)
(¸.•´¸.•*(¸.•' garybech AKA Circled "GB"

[Photos:]
photoW45
N 38° 49.255 W 121° 11.631

At above coordinates. BM worn and reading the stamp was difficult. Found behind the memorial bench.

[Photos:]
photoIMG_1011
JS0766, W45 USGS
photoIMG_1013
looking SW. BM behind granite memorial bench
photoIMG_1018
looking NE
photoIMG_1014
memorial bench

Easy find and great history next to the town hall

it is still there

N 38° 49.251 W 121° 11.620

My eTrex Legend gave N 38 49.251 W 121 11.620 sitting next to the mark, which is set in the concrete front apron of the South Placer Municipal Utility District building at 3671 Taylor Road in the downtown area of the Town of Loomis. The mark is in good shape, and is clearly stamped as being at 399 feet above sea level.

[Photos:]
photoW45 in the wild
The mark as found.
photoW45 made readable
Stamping enhanced with talcum powder.
photoW45 eye-level view
It looks like this when you're standing on the sidewalk.
photoW45 from across the street
The view from across the street, with a purple arrow pointing at the mark.

Documented History (by the NGS)

01/01/1940 by USGS (MONUMENTED)
01/01/1969 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1969 7.3 MI NE FROM ROSEVILLE. 7.3 MILES NORTHEAST ALONG THE SOUTHERN PACIFIC COMPANY RAILROAD FROM THE STATION AT ROSEVILLE, AT LOOMIS, 0.1 MILE SOUTH OF THE LOOMIS SIDING SIGN, AT THE JUNCTION OF TAYLOR ROAD AND HORSESHOE BAR ROAD, IN THE TOP OF THE CONCRETE FOUNDATION OF PILLARS AND BETWEEN THE NORTHEAST MOST PILLARS OF THE NORTHWEST ENTRANCE TO ROCKLIN-LOOMIS MUNICIPAL UTILITIES DISTRICT BUILDING, 186 FEET SOUTHWEST OF THE SOUTHWEST CURB OF HORSESHOE BAR ROAD, 10.9 FEET SOUTHEAST OF THE SOUTHEAST CURB OF TAYLOR ROAD, 7 FEET NORTHEAST OF THE CENTER OF THE DOOR, 0.6 FOOT NORTHEAST OF THE NORTHEAST SIDE OF THE FIRST PILLAR NORTHEAST OF THE DOOR, AND ABOUT 1 FOOT HIGHER THAN THE SIDEWALK.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (EH) RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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