TY  - RPRT
TI  - Characteristics of giant rockslides in the Appalachian Valley and Ridge, Virginia, West Virginia, Maryland, and Pennsylvania
AU  - C.S. Southworth
AU  - A. P. Schultz
PY  - 1986
DO  - 10.3133/ofr8694
UR  - https://pubs.usgs.gov/publication/ofr8694
ID  - ofr8694
ER  -