Reconnaissance map of northeastern portion of Seward Peninsula Alaska / U.S. Geological Survey ; Alfred H. Brooks, geologist in charge ; D.C. Witherspoon, topographer ; C.E. Hill, field assistant.Geological Survey (U.S.)1907"Surveyed in 1903; additional areas from surveys made in 1900 and 1901 by U.S. Geological Survey".Relief shown by contours; contour interval 200 feet.cartographic