GRETA

ALTERNATE NAME/NUMBER - 2614/34

73º 30' 37.252" S

94º 18' 04.566" W

1225.9 Meters

THURSTON ISLAND - JONES MOUNTAIN CONTROL

1968-69 Season

Engineers: Klaus Anderson, Frederick Brownsworth, Jr., Karl Eissinger, Charles Morrison, and Ronald Todd

Terrestrial survey network employing Wild T-2 theodolite for angular measurements and Electro-tapes for distance measurements.

DKM-3A used for astro measurements.

Located at the W central edge of the Jones Mountains at the base of the Avalanche Ridge approximately 1 km W of Pillsbury tower, approximately 65 meters S of the edge of a vertical slope, and 1.5 meters N of a 1 meter high rock cairn, monumented station.

Survey mark - Standard USGS tablet set in drill hole in rock outcrop of basaltic rubble, stamped "GRETA 1968-1969".

Surveyed on 19 January 1969.

Horizontal Datum - Position based on the Astronomic Position of Camp II determined during the 1968-69 Season.

Vertical Datum - Mean sea level

Image Views

FULL Scene (185 km x 185 km)

Landsat 4: LT4229112008901610

Path 229 Row 112 - 04 November 1996

Quad map outlined in red. Up in image is roughly 35 degrees True.

Sun elev: 27º / Sun azimuth: 72º

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B&W: 293K jpeg (12 pixels/inch)

Regional View

28 km x 28 km (701 x 701 pixels)

Box indicates position of local chip

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Local Chip

2.5 km x 2.5 km (69 x 69 pixels)

Centered on control point pixel

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Aerial photos

Vertical

from TMA 1734-378V

approx 4 km x 4 km

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Local Chip

101 x 101 pixels

Centered on control point

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Polariod (1)

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Polariod (2)

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Oblique (1)

from TMA 1734-377L

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Oblique (2)

from TMA 1766-197L

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