TY - RPRT TI - Preliminary geologic map and cross section of the Ellenville and Kerhonkson quadrangles (in part) and the Napanoch quadrangle, Ulster and Orange Counties, New York AU - Jack Burton Epstein AU - Peter T. Lyttle PY - 1990 DO - 10.3133/ofr90467 UR - https://pubs.usgs.gov/publication/ofr90467 ID - ofr90467 ER -