Topography of Kasaan Peninsula, Prince of Wales Island, Alaska / Alfred H. Brooks, geologist in charge of division ; topography by D.C. Witherspoon, R.H. Sargent, and J.W. Bagley.Geological Survey (U.S.)1911"Alaska sheet no. 540A."Relief shown by contours and spot heights.Surveyed in 1907-1908.cartographic