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Details for Benchmark: MD0351

N 41° 28.433 W 084° 33.100 (NAD 83)

Altitude: 771.08

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

Location:
In WILLIAMS county, OH View Original Datasheet
Designation:
772
Marker Type:
pipe cap
Setting:
set into the top of a metal pipe driven into the ground
Stability:
Mark of questionable or unknown stability.

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Recovered in good condition at N 41° 28.428 W 084° 33.113.

[Photos:]
photoMD0351(772) - Bryan OH
photoMD0351 - Eye level
photoMD0351 - Looking N toward mark

Station recovered as described in good condition.

very easy to find

Be careful of the construction

Station recovered as described in good condition.

[Photos:]
photoBM_MD0351_1.jpg
photoBM_MD0351_2.jpg
photoBM_MD0351_3.jpg
N 41° 28.425 W 084° 33.127

Pipe Cap 772 was recovered as described, in good condition.

[Photos:]
photoMD0351 20060830 G (Williams Co. OH)
Pipe Cap 772 w/GPSr.
photoMD0351 20060830 C (Williams Co. OH)
Pipe Cap 772.
photoMD0351 20060830 B (Williams Co. OH)
Pipe Cap 772 from Eye Level.
photoMD0351 20060830 A1 N (Williams Co. OH)
North at Pipe Cap 772.
N 41° 28.425 W 084° 33.128

Pipe cap located on station in good condition.

saw the pipe after paying my taxes

Easy find.

[Photos:]
photobenchmark

Documented History (by the NGS)

Unknown by USGS (MONUMENTED)
01/01/1934 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1934 AT BRYAN. AT BRYAN, WILLIAMS COUNTY, AT THE SOUTHWEST CORNER OF THE COUNTY COURTHOUSE, AND 2.2 FEET SOUTH OF THE WEST SIDE OF THE SOUTH WALL. A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED OHIO 772 AND RIVETED ON THE TOP OF A 3-1/2-INCH IRON PIPE PROJECTING 6 INCHES ABOVE GROUND.

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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