1. Geologic map of part of the Rising Sun quadrangle, Boone County, Kentucky [cartographic material] Yale Public content 1971. 2012-03-14T17:16:56Z. 2012-03-27T23:59:14Z. Geological Survey (U.S.). The Survey. English. Public. Kentucky and Boone County.
2. Geologic map of parts of the Burlington and Addyston quadrangles, Boone County, Kentucky [cartographic material] Yale Public content 1972. 2012-03-28T19:27:51Z. 2012-05-03T15:33:53Z. Geological Survey (U.S.). The Survey. English. Public. Kentucky and Boone County.
3. Geologic map of parts of the Gaither, Hasty, Harrison, Jasper, and Ponca quadrangles, Boone and Newton counties, northern Arkansas [microform] Yale Public content 1998. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Arkansas, Boone County, and Newton County.
4. Geologic map of parts of the Lawrenceburg, Aurora, and Hooven quadrangles, Boone County, Kentucky [cartographic material] Yale Public content 1972. 2012-03-22T20:09:51Z. 2012-05-03T15:31:29Z. Geological Survey (U.S.). The Survey. English. Public. Kentucky and Boone County.
5. Geologic map of the Verona quadrangle, north-central Kentucky Yale Public content 1969. 2012-02-27T15:54:27Z. 2012-02-27T15:54:27Z. Geological Survey (U.S.). The Survey. English. Public. Kentucky, Gallatin County, Grant County, and Boone County.