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Details for Benchmark: JS4089

N 38° 46.341 W 121° 12.637 (NAD 83)

Altitude: 522

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

Location:
In PLACER county, CA View Original Datasheet
Designation:
RESERVOIR USGS 1954
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

Must Read!

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Out grabbing some benchmarks. Found at N38° 46.336 W121° 12.621

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

[Photos:]
photoReservoir 1954
photoJS4089 1

FTF?, FTL?, this was our first try at benchmark hunting so I have no idea if this is right, it was really easy to find and the view is pretty nice, I took a picture of the benchmark itself and one looking east?! I think. I'll post the pictures when I figure out how to get them from my phone to my computer.
Aloha
the4cs

Documented History (by the NGS)

01/01/1954 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1954 SEE STATION ROCKLIN

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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