1. Foundation and excavation conditions map of Anchorage and vicinity, Alaska [cartographic material] Yale Public content 1974. 2013-04-18T15:54:19Z. 2013-05-02T15:45:11Z. Schmoll, Henry R. U.S. Geological Survey. English. Public. Alaska and Anchorage.
2. Map showing relative compressibility of earth materials in part of west-central King County, Washington [cartographic material] Yale Public content 1974. 2013-05-23T19:39:35Z. 2013-06-13T15:36:12Z. Miller, Robert D. (Robert David), 1922-. U.S. Geological Survey. English. Public. Washington (State) and King County.