USGS B 662
Title:Gold placer mining in the Porcupine district
Publisher:U.S. Geological Survey
Ordering Info:This publication is out of print. Reproductions may be available. USGS Publications Warehouse
Eakin, H.M., 1918, Gold placer mining in the Porcupine district, in U.S. Geological Survey, Mineral resources of Alaska, report on progress of investigations in 1916: U.S. Geological Survey Bulletin 662, p. 93-100, 1 sheet.