TY - RPRT TI - Mineral resource potential map of the Lusk Creek Roadless Area, Pope County, Illinois AU - J. S. Klasner AU - T. M. Kehn AU - R. M. Thompson PY - 1983 DO - 10.3133/mf1405c UR - https://pubs.usgs.gov/publication/mf1405C ID - mf1405C ER -