TY - RPRT TI - Preliminary data for Madison Limestone test well 2, SE 1/4, SE 1/4 sec. 18, T. 1 N., R. 54 E., Custer County, Montana AU - David L. Brown AU - R. K. Blankennagel AU - J.F. Busby AU - R. W. Lee PY - 1977 DO - 10.3133/ofr77863 UR - https://pubs.usgs.gov/publication/ofr77863 ID - ofr77863 ER -