Geological Survey (U.S.)Relief shown by contours, spot heights and bathymetric isolines.; Title in lower right corner: Portland and vicinity; at head of map: Topography.; "R. B. Marshall, Chief Geographer. Topography by Hersey Munroe, J.H. Wheat, R.C. Seitz, R.A. Kiger, and K.F. Maxcy. Soundings by U.S. Coast and Geodetic Survey."; surveyed in 1914.; On verso: The topographic maps of the United States / by The Director, United States Geological Survey, Washington, D.C., June, 1916. -- 3 columns : ill.45 x 65 CentimetersJPEGUMN_ALMA:9973984907701701engThe Survey (Washington, D.C)PublicMaine, Portland and vicinityMapsMaine--PortlandMaineUniversity of Minnesota