This map is a nautical chart showing the hydrography of the area in Texas around the Aransas Pass. The physical features are outlined and shaded in color (relief shown by soundings and contours). Depths are marked with lines and numbers in feet. Text in the upper left corner is labeled "Sailing Directions" and "Note"; the text gives explanatory details regarding the markings and measurements on the map. Scale 1:20,000.
Map shows late nineteenth century coastal detail along Aransas Pass and Copano Bay, Texas. Includes "List of Authorities", and information on light houses, buoys, tides, and soundings. Depths shown by soundings. Scale [1:80,000].