TY - RPRT TI - Preliminary notes on the geology of the Levias fault system, Crittenden County, Kentucky AU - G. C. Hardin AU - H. J. Klepser AU - H.D. Trace AU - W. R. Thurston PY - 1944 DO - 10.3133/ofr4415 UR - https://pubs.usgs.gov/publication/ofr4415 ID - ofr4415 ER -