Ice crystals during cold spell at Lynx Creek, Alaska

Hand touching ice crystals during cold spell at Lynx Creek, Alaska

"An American Dipper (Cinclus mexicanus) with his fish, at Quartz Creek, Alaska"

High bush cranberries (Viburnum trilobum) and ice crystals during cold spell at Lynx Creek, Alaska

High bush cranberries (Viburnum trilobum) and ice crystals during cold spell at Lynx Creek, Alaska

Willow Creek river in the Talkettna Mountains, Alaska, USA, North America

"Sockeye Salmon, Redeye Salmon or Blueback Salmon (Oncorhynchus nerka), fish at spawning grounds, Power Creek, Cordova, Alaska, United States, North America"

"Sockeye Salmon, Redeye Salmon or Blueback Salmon (Oncorhynchus nerka) at spawning grounds, female building a nest to lay eggs, Power Creek, Cordova, Alaska, United States, North America"

"Mountain stream in the Talkeetna Mountains, Alaska, USA, North America"

"Glacial stream flowing through an ice cave of Matanuska Glacier, Matanuska Glacier, Alaska, United States, North America"

"Mountaineer looking up at the ceiling of an ice cave, glacial stream flowing through an ice cave of Matanuska Glacier, Matanuska Glacier, Alaska, United States, North America"

Williwaw Creek, Alaska