1966. 2012-01-03T16:02:10Z. 2012-03-05T17:27:50Z. Simpson, Howard E. U.S. Geological Survey. English. Public. Connecticut and Hartford County.
Search Results
1961. 2011-05-06T17:33:20Z. 2012-02-14T23:32:38Z. Simpson, Howard E. The Survey. English. Public. Connecticut, Hartford County, Litchfield County, and New Haven County.
3. Geologic map of the New Britain quadrangle, Connecticut surficial geology / [cartographic material]
1959. 2011-04-28T17:49:47Z. 2012-02-14T23:31:07Z. Simpson, Howard E. The Survey. English. Public. Connecticut and Hartford County.
1973. 2012-12-17T19:29:38Z. 2013-03-18T20:50:55Z. Simpson, Howard E. U.S. Geological Survey. English. Public. Colorado, Jefferson County, and Golden.
1973. 2012-12-17T19:31:23Z. 2013-03-18T22:31:36Z. Simpson, Howard E. U.S. Geological Survey. English. Public. Colorado, Jefferson County, and U.S.
6. Map showing landslides in the Golden quadrangle, Jefferson County, Colorado [cartographic material]
1973. 2012-12-17T19:19:28Z. 2013-03-18T22:31:36Z. Simpson, Howard E. U.S. Geological Survey. English. Public. Colorado, Jefferson County, and Golden County.
1973. 2012-12-17T19:33:34Z. 2013-03-18T22:31:36Z. Simpson, Howard E. U.S. Geological Survey. English. Public. Colorado, Jefferson County, and Golden.
1968. 2012-02-20T18:24:43Z. 2012-03-06T15:51:51Z. Simpson, Howard E. U.S. Geological Survey. English. Public. Connecticut, Middlesex County, and New Haven County.
