TY - RPRT TI - Digital bedrock geologic map of the Mount Holly and Ludlow quadrangles, Vermont: Database AU - Gregory J. Walsh AU - Nicholas M. Ratcliffe AU - John B. Dudley AU - Thomas Merrifield PY - 1994 DO - 10.3133/ofr94229b UR - https://pubs.usgs.gov/publication/ofr94229B ID - ofr94229B ER -