Sketch I, showing the progress of the survey in section no. 9 from 1848 to 54.
Description:
Map shows towns used for triangulation and areas of completed mapping by sheet number. Includes text, "Notes." Inset: Sub-sketch showing the progress of the Survey of the Rio Grande and vicinity 1853 & 1854. Scale [1:600,000] and [1:400,000].
Date:
1854
Creator:
United States Coast Survey
Item Type:
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