Nautical charts. Willapa Bay, Wash., topography by Coast and Geodetic Survey in 1939, supplemented by surveys by U. S. Engineers in 1937-38, hydrography by Coast and Geodetic Survey in 1939, supplemented by surveys by U. S. Engineers to 1941; no. 6185. Scale 1:40,000.
Publication Title:
Willapa Bay, Wash., topography by Coast and Geodetic Survey in 1939, supplemented by surveys by U. S. Engineers in 1937-38, hydrography by Coast and Geodetic Survey in 1939, supplemented by surveys by U. S. Engineers to 1941; no. 6185. Scale 1:40,000.
Display Title:
Nautical charts. Willapa Bay, Wash., topography by Coast and Geodetic Survey in 1939, supplemented by surveys by U. S. Engineers in 1937-38, hydrography by Coast and Geodetic Survey in 1939, supplemented by surveys by U. S. Engineers to 1941; no. 6185. Scale 1:40,000.