TY - RPRT TI - Geochemical map showing distribution of chalcopyrite within the Chugach National Forest, Alaska AU - R.J. Goldfarb AU - R. B. Tripp PY - 1985 DO - 10.3133/mf1645e UR - https://pubs.usgs.gov/publication/mf1645E ID - mf1645E ER -