@misc{indiciae71cab5533174, title = {Geologic map of large rock block slides at Sinking Creek Mountain, Appalachian Valley and Ridge Province, southwestern Virginia, and comparison with the Colorado Front Range}, author = {A. P. Schultz}, year = {1993}, doi = {10.3133/i2370}, url = {https://pubs.usgs.gov/publication/i2370}, note = {Source identifier: i2370} }