"No. 20"--Upper right margin., "The Yukon River, ranges of mountains, shores of Norton Sound and many features of the interior from a reconnaissance by W.H. Dall, Director of the Scientific Corps, of the W.U. Tel. Expedition, 1865-1868.", and Inset: Aleutian Islands.
Publisher:
U.S. Coast Survey,
Subject (Geographic):
Alaska--Maps and Yukon Territory--Maps
Subject (Name):
Dall, William Healey, 1845-1927 and Lindenkohl, H. (Henry)