@misc{indiciae89202fe4e304, title = {Aeromagnetic map of the Palen area, Riverside County, California}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1985}, doi = {10.3133/ofr85281}, url = {https://pubs.usgs.gov/publication/ofr85281}, note = {Source identifier: ofr85281} }