Atigun River photo 11 個月 0 Caribou trails photo 11 個月 0 Colorful lichens on rocks above the Atigun River. photo 11 個月 0 American golden plover on Arctic coastal plain nesting grounds. photo 11 個月 0 Rain and mist in the Brooks Range foothills photo 11 個月 0 American golden plover on Arctic coastal plain nesting grounds. photo 11 個月 0 Rain and mist in the Brooks Range foothills photo 11 個月 0 Gray-crowned rosy finch in the subalpine tundra photo 11 個月 0 Caribou trails photo 11 個月 0 Collecting vegetation samples photo 11 個月 0 American golden plover on Arctic coastal plain nesting grounds. photo 11 個月 0 Caribou antler photo 11 個月 2 R7ArcticNWR Volunteer Roger replacing floor in Barter Island Bunkhouse photo 11 個月 0 Caribou trails photo 11 個月 0 Gray-crowned rosy finch in the subalpine tundra photo 11 個月 0 Rain and mist in the Brooks Range foothills photo 11 個月 0 Rainbow in the Brooks Range photo 11 個月 0 Field research photo 11 個月 0 R7ArcticNWR Volunteer Brad delivering snow machine and sleds to Kaktovik photo 11 個月 0 Atigun River photo 11 個月 0 Summer stream photo 11 個月 0 American golden plover on Arctic coastal plain nesting grounds. photo 11 個月 0 American golden plover on Arctic coastal plain nesting grounds. photo 11 個月 0 Rain and mist in the Brooks Range foothills photo 11 個月 0 Hiking above the Atigun River photo 11 個月 0 Mountain stream in Atigun Gorge photo 11 個月 0 American golden plover on Arctic coastal plain nesting grounds. photo 11 個月 0 Hiking above the Atigun River photo 11 個月 0 American golden plover on Arctic coastal plain nesting grounds. photo 11 個月 0 Atigun River photo 11 個月 0 A lone caribou crosses the tundra. photo 11 個月 0 Collecting vegetation samples. photo 11 個月 0 American golden plover on Arctic coastal plain nesting grounds. photo 11 個月 0 A hiker pauses in the subalpine tundra to take photos of wildflowers. photo 11 個月 0 Collecting caribou scat photo 11 個月 0 River channels photo 11 個月 0 Hiking above the Atigun River photo 11 個月 0 Summer stream photo 11 個月 0 River channels photo 11 個月 0 Field research photo 11 個月 0