TY  - RPRT
TI  - Reconnaissance surficial geologic map of the mountainous parts of Loudoun County, Virginia
AU  - Robert B. Jacobson
AU  - R. C. McDowell
AU  - D.J. Milton
AU  - Wayne L. Newell
AU  - J. S. Pomeroy
AU  - J.S. Schindler
AU  - C.S. Southworth
PY  - 1990
DO  - 10.3133/ofr90205
UR  - https://pubs.usgs.gov/publication/ofr90205
ID  - ofr90205
ER  -