@misc{indiciae0647801ee6dd, title = {Landslides and related features, Pennsylvania - Pittsburgh 1° x 2° sheet}, author = {John S. Pomeroy and William E. Davies}, year = {1979}, doi = {10.3133/ofr791314}, url = {https://pubs.usgs.gov/publication/ofr791314}, note = {Source identifier: ofr791314} }