TY  - RPRT
TI  - Mineral resource potential map of the Four Notch Roadless Area, Sam Houston National Forest, Walker County, Texas
AU  - B. B. Houser
AU  - G. S. Ryan
PY  - 1983
DO  - 10.3133/mf1549
UR  - https://pubs.usgs.gov/publication/mf1549
ID  - mf1549
ER  -