TY - RPRT TI - Geologic map of the Ennis 30' x 60' quadrangle, Gallatin and Madison Counties, Montana AU - Karl S. Kellogg AU - Van S. Williams PY - 1998 DO - 10.3133/ofr97851 UR - https://pubs.usgs.gov/publication/ofr97851 ID - ofr97851 ER -