Unusually large dreikanter of granite on the Lander road a few miles south of Pacific Springs. This dreikanter measures 71 cm by 46 cm deep and 37 cm wide. Sweetwater County, Wyoming. 1930. Bradley, W.H. 560, US Geological Survey Photographic Archive.
View of Chezhin Chotah Butte from inside the LM mockup through one of two triangular windows from which the crew described the "landing site" before egression onto the surface (see Fig. 19) USGS Open-File Report 2005-1190, ID Project Apollo (1960-1973) Figure 031e.
Fig 156: Pits of raindrops in modern sand, of Lyons Sandstone texture. 'Ancient Sandstones Considered to be Eolian', p. 219, 'A Study of Global Sand Seas', US Geological Survey Professional Papers, 1979
Spines of ISEI Technical Report Journals, Earth Sciences Library, Downing Site, Cambridge.
Figure 24. - An example of Tarr and Martin's innovative apprach to making information about glaciers understandable to the lay public by depicting part of the terminus of the Childs Glacier with the U.S. Capitol superimposed for scale (Tarr and Martin, 1914, Plate CXLVIII, p. 416); Figure 25. - Oscar D. von Engeln, photographer on the 1910 NGS Alaska Expedition led by Lawrence Martin, washing a strip of negatives in Yakutat Bay sea water, surrounded by icebergs. Photographs from Cornell University archives. Original photgraph in the National Geographic Society Archives, Washington, D.C. (Bendavid-Val and others, 1999), from Molnia, B.F., 2008, Glaciers of North America -- Glaciers of Alaska, in Williams, R.S., Jr., and Ferrigno, J.G., eds., Satellite image atlas of glaciers of the world: U.S. Geological Survey Professional Paper 1386-K
Image taken with Bagley 3-lens T-1 camera used in systematic Alaskan aerial photographic surveys in 1926 and 1929 by the USGS-U.S. Navy Alaska Aerial Survey Expedition, Photograph Moffitt 729 from the USGS Photographic Library, Denver, Colorado; from Molnia, B.F., 2008, Glaciers of North America -- Glaciers of Alaska, in Williams, R.S., Jr., and Ferrigno, J.G., eds., Satellite image atlas of glaciers of the world: U.S. Geological Survey Professional Paper 1386-K
Figure 444: A 20mm-thick ash plot 7 days after ash was spread on the snow surface, South Cascade Glacier, Washington. Distance between poles is about 5m; each plot is about 1m wide. From The 1980 eruptions of Mount St. Helens, Washington. 1981, Edited by Lipman, Peter W.; Mullineaux, Donal Ray, USGS Professional Paper: 1250
