1. Computer composite map showing inferred relative stability of the land surface during earthquakes, Sugar House quadrangle, Salt Lake County, Utah [cartographic material] Yale Public content 1977. 2012-12-19T14:52:23Z. 2013-03-18T22:32:07Z. Van Horn, Richard, 1920-. U.S. Geological Survey. English. Public. Utah and Salt Lake County.