1. Bedrock geologic map of the Unionville quadrangle, Orange County, New York, and Sussex County, New Jersey Yale Public content 1992. 2002-06-01T04:00:00Z. 2012-07-13T13:05:44Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. New York (State), Orange County, New Jersey, and Sussex County.