Galena, Alaska located on the Yukon River between the Koyukuk River and the Nowitna River. Galena was established in 1918 near an Athabascan fish camp called Henry's Point. It became a supply and point for nearby lead ore mines that opened in 1918 and 1919. In 1941 and 1942, during World War II, a military air field was built adjacent to the civilian airport, and the two facilities shared the runway and flight line facilities. This air field was designated Galena Air Force Station shortly after the split of the United States Air Force from the United States Army, which occurred as
Silver Valley (Idaho) Lewis and Clark line – a series of strike-slip faults running across the Pacific Northwest – crosses this anticline, generally trending in an east-west direction. Within this mining district, the major structure of the lineament is the Osburn fault, which runs directly through the district’s most successful silver belts. Its 16-mile (27 km) displacement divides the district into two distinct parts, the southern Page Galena Belt, and the northern Golconda Lucky Friday Belt. Three main minerals make up most of the ore production in the Silver Valley. Galena (PbS or lead(II) sulfide) is the most important ore mineral found in