Description: Map shows towns used for the triangulation of surveyors in the Rio Grande River area of Texas between 1853 and 1856. Includes text "Notes." Inset: "Sketch of Rio Grande and vicinity 1853 & 56." Scale [1:600,000] and [1:400,000].
Creator: United States Coast Survey
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library