Wikimedi'Òc

Junction of the Yukon and Koyukuk Rivers, Alaska.jpg - Gretarsson

Tlevak Strait-Suemez Island.jpg - Michael Metzger

Bulletin of the United States Geological Survey-The Rampart Gold Placer Region, Alaska (1906) (14596678537).jpg - Faebot

LakeAtnaDeposits.jpg - Hammersoft

Generalized Stratigraphic Column of the Cook Inlet Basin, Alaska.png - AllisonBarbato