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Details for Benchmark: UW6278

N 62° 18.420 W 150° 50.734 (NAD 83)

Altitude: 0

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

Location:
In county, AK View Original Datasheet
Designation:
LITTLE
Marker Type:
survey disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

Reference Points

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Found as described in poor condition.
Recovery report submitted to the NGS, as follows:
ALUMINUM TABLET IS MISSING FROM HOLE IN ROCK OUTCROP.
ELEVATION BY HANDHELD GPS 2609 FEET.
STATION WAS REACHED BY SNOWMOBILE.
STATION IS LOCATED IN MATANUSKA-SUSITNA BOROUGH, ALASKA,
24 MI. (AIRLINE) W. OF TALKEETNA.

This mark is located atop the tallest of the Little Peters Hills, due west of the community of Talkeetna, Alaska. Our expedition covered 27 miles one-way from the trailhead to the station, with a 1200' gain in elevation (most in the last 3 miles on the approach to the hilltop). Temperature at the start was -18F, and a brisk 30+mph breeze was blowing steadily from the NE atop the hills.

As we climbed the hills from the north side, a BLM Cadastral Survey mark was found atop the northern (and lower) of the two most prominent hilltops at N62 19.249 W150 50.764, mounted to a pipe projecting 18" above ground. The wind was actively scouring much of the snow away, making approach tough both to avoid the rocks and to avoid damage to the fragile tundra.

While disappointed to find the tablet missing from the drill hole, it was exciting to find remains of the last station occupation and the drill hole itself. Fifty-two miles to the north of us Denali (Mt Mckinley) and Foraker dominated the horizon. A successful trip on a beautiful sunny day in the Alaska winter backcountry - priceless!

[Photos:]
photoUW6278 LITTLE 1954 (closeup) Mat-Su Borough, AK
Close-up of drill hole. Aluminum tablet is missing.
photoUW6278 LITTLE 1954 (area) Mat-Su Borough, AK
Drill hole and GPS. Note the GPS read 2609' but the VABM as recorded on the USGS Talkeetna B-2 (AK) Topo Map is actually 2534' of elevation.
photoUW6278 LITTLE 1954 (view N) Mat-Su Borough, AK
Looking north across the station to 20,161' Denali (Mt McKinley) (on the horizon at right) and 17,320' Foraker on the left. Station is at bottom center next to GPS unit.
photoUW6278 LITTLE 1954 (view W) Mat-Su Borough, AK
View west across the station, looking across the Kahiltna River valley towards the Alaska Range. Evidence of previous station use was present in the form of wire tie-downs (as seen here in right side of photo)
photoUW6278 LITTLE 1954 (view S) Mat-Su Borough, AK
Looking south over the top of 2534' hilltop and station towards Mt Susitna on the far horizon. Six snowmobilers rode to the base of the hill; two made the ascent (tough climb/cold 30mph winds at subzero temps). Although this area's had more than ten feet of snowfall this season little remains atop the ridge due to the wind's scouring effect.
photoUW6278 LITTLE 1954 (area) Mat-Su Borough, AK
Closeup of BLM Cadastral mark, found atop the lower hill one mile north of UW6278 LITTLE 1954.
photoUW6278 LITTLE 1954 (area) Mat-Su Borough, AK
Looking north to Denali (and my snowmobile) at BLM Cadastral mark, found atop the lower hill one mile north of UW6278 LITTLE 1954.
photoUW6278 LITTLE 1954 (area) Mat-Su Borough, AK
A view of the northernmost (lower) end of the Little Peters Hills. We're about 5 miles north of the station at this point.
photoUW6278 LITTLE 1954 (after) Mat-Su Borough, AK
How we spent the remainder of the day after finding the mark - playing in the snow and sunshine while exploring the Petersville mining district, west of Talkeetna Alaska.

Documented History (by the NGS)

01/01/1954 by USGS (MONUMENTED)
DESCRIBED BY US GEOLOGICAL SURVEY 1954 STATION IS LOCATED ABOUT 27 MI. (AIRLINE) N. OF THE SKWENTNA CAA STATION AND 24 MI. (AIRLINE) W. OF TALKEETNA, A STATION ON THE ALASKA RAILROAD. ON THE HIGHEST AND MOST WESTERLY TOP OF THE LITTLE PETERS HILLS. STATION WAS REACHED BY HELICOPTER. STATION MARK--STANDARD ALUMINUM TABLET STAMPED ---LITTLE 1954---, CEMENTED IN A DRILL HOLE IN ROCK OUTCROP. REFERENCE MARKS--NONE.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in July 1986.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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