Nautical charts. Sabine Pass and Lake, La. and Tex., Gulf Coast, topography by Coast and Geodetic Survey in 1934 and 1935, supplemented by surveys by U. S. Geological Survey in 1932, hydrography by Coast and Geodetic Survey in 1923, supplemented by surveys in dredged channels by U. S. Engineers to 1938; chart 517. Scale 1:40,000.