TY - RPRT TI - Chemical and statistical analysis of stream sediments, heavy-mineral concentrates, and rocks of the Hells Gate Roadless Area, Gila County, Arizona AU - James E. Kilburn AU - D.E. Detra PY - 1983 DO - 10.3133/ofr83498 UR - https://pubs.usgs.gov/publication/ofr83498 ID - ofr83498 ER -