TY - RPRT TI - Geologic map of Mackay 4 (Grouse) SE Quadrangle, Butte County, Idaho AU - Betty Skipp AU - M. A. Kuntz AU - L. A. Morgan PY - 1989 DO - 10.3133/ofr89431 UR - https://pubs.usgs.gov/publication/ofr89431 ID - ofr89431 ER -