TY - RPRT TI - Geologic map of the Gulkana A-1 quadrangle, south-central Alaska AU - Donald H. Richter AU - W. A. Duffield AU - D.A. Sawyer AU - J.C. Ratte AU - H. R. Schmoll PY - 1994 DO - 10.3133/gq1728 UR - https://pubs.usgs.gov/publication/gq1728 ID - gq1728 ER -