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 Centimeters
Use of this item may be governed by US and international copyright laws. You may be able to use this item, but copyright and other considerations may apply. For possible additional information or guidance on your use, please contact the contributing organization.