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Details for Benchmark: GF0992

N 36° 44.283 W 093° 54.800 (NAD 83)

Altitude: 1529.57

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

Location:
In BARRY county, MO View Original Datasheet
Designation:
X 348
Marker Type:
vertical control disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

Must Read!

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I AM LOGGING THIS ONE AS THE 28TH BUT I GOT THE FIRST IMAGES ON THE 21 OF THIS MONTH FOR THE CONTEST.
AS I WAS COMING BACK EARLY FROM MOGA IN THE SNOW AND RAIN I THOUGHT I MIGHT STAND A CHANCE TO GET ONE COVERED WITH SNOW.

I CHECKED QUITE A FEW ON THE WAY HOME AND IT WAS ABOUT 3:00 am AND COLD.
I HAD BEEN AT THE EVENT THE LAST 2 DAYS AND WAS ABOUT TO GIVE UP WHEN I STOPPED HERE.

I GOT ONE WITH SNOW COVERING IT.
WOOOOOOOOHOOOOOOOOOOO!!!

[Photos:]
photoGF0992 X 348
BENCHMARK X 348
photoGF0992 WP 3/21/2009
BENCHMARK AND WITNESS POST ON 3/21/2009
photoGF0992 X 348 WP 3/28/2009
AT 3:00 AM IS THERE SNOW???
photoX 348 STILL COVERED
THE BENCHMARK X 348 COVERED IN SNOW
photoX 348 UNCOVERED
CANT SEE IT TO GOOD WITH FLASH

HERE ON THE POKER FUN RUN,MAPPING AND REPORTING MARKS FOR UPDATE AT THE NGS.
MARK IN GOOD SHAPE.
NGS REPORT SUBMITTED.

[Photos:]
photoGF0922 X 348
GF0922 X 348 GEOCOIN
photoGF0922 X 348 BM
GF0922 X 348 BENCHMARKS VIEW

This station is in extremely good condition and has a neat setting in a rock outcrop.

[Photos:]
photoX 348.jpg
photoTracks near X 348 (looking East).jpg

Monument in good shape.

[Photos:]
photoX 348 Vertical control
Hi ya henchmark.
photoX 348 West
Western view.
photoX 348 South
Southern view to overpass.

Documented History (by the NGS)

01/01/1989 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1989 9.0 KM (5.60 MI) SOUTHERLY ALONG STATE HIGHWAY 37 FROM ITS JUNCTION WITH COUNTY ROAD C IN PURDY, IN A 5 BY 10 FOOT EXPOSED AREA OF BEDROCK IN A HIGHWAY CUT, 0.4 KM (0.25 MI) NORTHWEST OF AN ARKANSAS AND MISSOURI RAILROAD OVERPASS, 13.0 M (42.7 FT) WEST OF THE CENTERLINE OF THE HIGHWAY, 1.2 M (3.9 FT) ABOVE THE LEVEL OF THE HIGHWAY, AND 0.2 M (0.7 FT) WEST OF A WITNESS POST.

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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