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Details for Benchmark: PB0230

N 43° 45.117 W 121° 27.617 (NAD 83)

Altitude: 4207.45

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

Location:
In DESCHUTES county, OR View Original Datasheet
Designation:
S 62
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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N 43° 45.136 W 121° 27.623

Found in good condition.

[Photos:]
photoS 62 a
photoS 62 b

Found this benchmark while out geocaching with Debiko.

Found this one in good condition while in the LaPine area geocaching around the volcanic park.

[Photos:]
photoPB0230 - general area around disk emplacement
photoPB0230 - witness post and disk area
photoPB0230 - Close view of disk in mount
photoPB0230 - Closeup of disk
photoPB0230 - Closeup of disk - angle
photoPB0230 - GPSr with disk - closeup

had to dig through the snow but still there in good shape

[Photos:]
photopb0230.JPG

GOOD CONDITION

[Photos:]
photoPB0230 BM. DESCHUTES CO. OREGON
photoPB0230 AREA. DESCHUTES CO. OREGON
N 43° 45.139 W 121° 27.622

Benchmark #145. 9:00 am. At the described location. Volcanoguy

[This entry was edited by volcanoguy on Friday, July 08, 2005 at 8:52:08 PM.]

[Photos:]
photoBenchmark PB0230

In good condition.

[Photos:]
photoPB0230
Great shape for 1931 disk

Documented History (by the NGS)

01/01/1931 by CGS (MONUMENTED)
01/01/1934 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1934 6.2 MI NE FROM LAPINE. 6.2 MILES NORTHEAST ALONG THE DALLES- CALIFORNIA HIGHWAY FROM LAPINE, DESCHUTES COUNTY, AT MILEAGE 165.5, 15 FEET SOUTHWEST OF A ROAD TO THE WEST AT THE NORTH END OF PAULINA PRAIRIE, 98 FEET WEST OF THE HIGHWAY CENTERLINE, IN THE TOP OF A CONCRETE POST FLUSH WITH THE GROUND. A STANDARD DISK STAMPED 4203.417 S62 1931.
07/20/1988 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION. A NEW DESCRIPTION FOLLOWS. 9.9 KM (6.15 MI) NORTHERLY ALONG U.S. HIGHWAY 97 FROM THE POST OFFICE IN LAPINE, 10.1 M (33.1 FT) WEST OF THE CENTERLINE OF THE HIGHWAY, 10.1 M (33.1 FT) SOUTHWEST OF THE CENTER OF A PAVED ROAD LEADIING NORTHWEST, 0.6 M (2.0 FT) SOUTHEAST OF UTILITY POLE NUMBER L 4, 0.6 M (2.0 FT) BELOW THE LEVEL OF THE HIGHWAY, 0.3 M (1.0 FT) SOUTHWEST OF A WITNESS POST, AND IN TOP OF A CONCRETE POST THAT IS FLUSH WITH THE GROUND SURFACE.

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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