1. Geologic map of the Harrodsburg quadrangle, Mercer and Woodford Counties, Kentucky [cartographic material] Yale Public content 1972. 2012-03-28T14:22:33Z. 2016-09-28T13:03:51Z. Allingham, Jack. U.S. Geological Survey. English. Public. Kentucky, Mercer County, and Woodford County.