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Details for Benchmark: AI5759

N 38° 33.727 W 078° 22.944 (NAD 83)

Altitude: 3560

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

Location:
In MADISON county, VA View Original Datasheet
Designation:
118 MLS
Marker Type:
bench mark disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

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Found while out with my boys enjoying an autumn day. disk in good shape.

[Photos:]
photoShisa at AI5759

Found as described in good condition

[Photos:]
photoAI5759 on the Skyline Drive, VA
closeup of disk
photoAI5759 on the Skyline Drive, VA
the setting

Found on the way to hike up to Stoney Man Cliff Virtual Geocache next to Skyland...Found fairly quickly with description and previous photo history.....

[Photos:]
photoAI5759 Close up
photoAI5759 Looking West to Parking Overlook

On vacation with family

Still there.

[Photos:]
photo118 MLS

Recovered in good condition.

Found as described.

Please see the complete recovery, including text and photos, at my website: [b][url=http://surveymarks.planetzhanna.com/surveymarks/ai5759/]AI5759 - 118 MLS[/url][/b].

Zhanna

This entry was edited by Zhanna on Friday, 07 December 2012 at 02:14:24 UTC.

The hard way to reach this station is up a short, steep spur from the AT.

[Photos:]
photo118 MLS -- Madison County, VA

As described.

[Photos:]
photoAI5759 SM.JPG

Easy find. Surveyors' tape hanging nearby.

[Photos:]
photoView west from marker across Skyline Drive to Crescent Rock Overlook

Recovered as described. Fun find.

[Photos:]
photoAI5759

Documented History (by the NGS)

1/1/1963 by CGS (MONUMENTED)
3/1/2000 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 2000 (RWA) 21.7 MILES NORTHEAST OF SWIFT RUN GAP, ALONG SKYLINE DRIVE, 2.6 MILES SOUTHWEST OF SKYLAND, AT CRESCENT ROCK OVERLOOK, 253 FEET NORTHEAST OF JUNCTION OF SKYLINE DRIVE AT SOUTHWEST TURNOUT TO OVERLOOK, 67 FEET SOUTHEAST OF JUNCTION OF SKYLINE DRIVE AT CENTER TURNOUT TO OVERLOOK, 33 FEET EAST OF AND ABOUT 10 FEET HIGHER THAN SKYLINE DRIVE, IN LARGE ROCK OUTCROP.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in November 2000.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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