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Details for Benchmark: FB1218

N 35° 35.567 W 083° 23.083 (NAD 83)

Altitude: 3354.41

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

Location:
In SWAIN county, NC View Original Datasheet
Designation:
A 57
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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stopped to take a pic and saw this one...wish i would have marked the loc on gps, would have been easier than searching through benchmarks on site

[Photos:]
photo2010_0727_112822AA

Ran across this benchmark while stopping for a photo op....

[Photos:]
photoA57

What a nice surprise to find when we pulled over to take some pictures of the mountains.

Found at a pull-off while driving to Newfound Gap, Great Smoky Mountains National Park. Out exploring with pookie.

[Photos:]
photoBenchmark

I am just logging this on 11/30/2009 thiough we found it in June 2009. This is my first Benchmark log and I think we'll do a lot more very soon.

[Photos:]
photoBenchmark

cool benchmark.. see pix

[Photos:]
photo# 57

didn't have this logged into the gps(all i have are geocaches, but i did manage to read about benchmarks and etc while browsing the website.),but when we stopped to take pictures of the mountains, i looked down and :O I KNOW WHAT THOSE ARE! so, i marked the location on my gps.

Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1934 5 MI NW FROM SMOKEMONT. 5 MILES NORTHWEST ALONG STATE HIGHWAY 107 FROM SMOKEMONT, SWAIN COUNTY, IN A SHALLOW CUT 34 FEET EAST OF THE CENTERLINE OF THE HIGHWAY, 20 FEET SOUTH OF A 10-INCH TREE, AND 3 FEET HIGHER THAN THE HIGHWAY. A STANDARD DISK, STAMPED A 57 1934 AND SET IN THE TOP OF A CONCRETE POST.
01/01/1963 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1963 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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