@misc{indiciae0544375c7521, title = {Water resources and geology of Mount Rushmore National Memorial, South Dakota}, author = {J.E. Powell and James Jennings Norton and D. G. Adolphson}, year = {1973}, doi = {10.3133/wsp1865}, url = {https://pubs.usgs.gov/publication/wsp1865}, note = {Source identifier: wsp1865} }