Nautical charts. Intracoastal Waterway, New Orleans to Calcasieu River, west section, La., Gulf Coast, topography by Coast and Geodetic Survey in 1934 and 1935, supplemented by surveys by U. S. Geological Survey 1932-34, and War Dept. 1932-40, hydrography by Coast and Geodetic Survey in 1935; no. 1051. [Scale 1:175,000.]