@misc{indiciae83100c3ece54, title = {Drill-hole location maps, Carlsbad mining district, Eddy and Lea Counties, New Mexico}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1978}, doi = {10.3133/ofr79251}, url = {https://pubs.usgs.gov/publication/ofr79251}, note = {Source identifier: ofr79251} }