1899 Arthur Clarence Pillsbury photographs, Dawson to Circle City
NPS staff testing Charley river water quality in Yukon-Charley Rivers National Preserve
NPS staff collecting moose browse in Yukon-Charley Rivers National Park and Preserve
NPS staff testing Crescent creek water quality in Yukon-Charley Rivers National Preserve
NPS staff testing Hosford creek water quality in Yukon-Charley Rivers National Preserve
NPS staff testing Charley River water quality in Yukon-Charley Rivers National Preserve
NPS staff testing charley river water quality in Yukon-Charley Rivers National Preserve
NPS staff testing Copper creek water quality in Yukon-Charley Rivers National Preserve
NPS staff testing water quality at Bonanza Creek in Yukon-Charley Rivers National Preserve
NPS staff collecting moose browse in Yukon-Charley Rivers National Preserve
NPS staff testing Dewey creek water quality in Yukon-Charley Rivers National Preserve
NPS staff testing Charley river water in Yukon-Charley Rivers National Preserve