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Title: Muir and Riggs Glaciers, Muir Inlet, Alaska - 1941

Description:

This northeast-looking photograph, on the southeastern side of White Thunder Ridge ,shows the lower reaches of Muir Glacier, then a large tidewater calving valley glacier, and its tributary Riggs Glacier. The séracs in the lower right-hand corner of the photograph mark Muir Glacier’s terminus. The ice thickness is more than 700 meters. Muir Glacier had been retreating since the mid-eighteenth century, with maximum retreat exceeding 50 kilometers. In places, more than a kilometer thickness of ice had been lost. Note the absence of vegetation and the bare bedrock faces present on both sides of the glacier. (W.O. Field)

Location: AK

Date Taken: August 13 1941

Photographer: ,

Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.

Source:

USGS Desert Laboratory Repeat Photography Collection.  Contact for additional information:  Diane Boyer, deboyer@usgs.gov or 520-670-6671, ext. 297

File Details:
Type: JPEG image - 1.25 MB
Dimensions: 1800 x 1190
Resolution: 72 dpi

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Tags: Alaska Boyer ClimateChange DesertLaboratory Muir NR2010_12_02 RepeatPhotography Riggs Turner Webb biology glacier