USGS OF 341
Title:Preliminary geologic map of the Black River Quadrangle, east-central Alaska
Publisher:U.S. Geological Survey
Comments:This publication was reclassified with a new publication number in 1975; see below for the updated classification number.
Ordering Info:This publication is out of print. Reproductions may be available. USGS Publications Warehouse
Brabb, E.E., 1969, Preliminary geologic map of the Black River Quadrangle, east-central Alaska: U.S. Geological Survey Open File Report: Technical Data Unit classification number 341, 1 sheet.