Sketch H. showing the progress of the survey in section no. VIII, from 1846 to 1862.

Scale 1:600,000.
LC Civil War Maps (2nd ed.), 35.5
From its Report of the Superindent of the Coast Survey, showing the progress of the survey during the year 1862. (Washington, Government Printing Office, 1864). Map 35.
At head of title: U.S. Coast Survey. A. D. Bache, Superindent.
"No. 35" in the upper left corner.
Map shows the extent of the triangulation network from Mobile Bay by the Mississippi River delta.
Insets: Plan of Fort Jackson, showing the effect of the bombardment by the U. S. mortar flotilla and gunboats, April 18th to 24th 1862. 27 x 41 cm.--Reconnoissance [sic] of the Mississippi River below Forts Jackson and St. Philip made previous to the reduction by the U. S. Fleet under the command of flag officer D. G. Farragut, U.S.N. 23 x 42 cm.
(For other copies of these maps see entry nos. 236-237)
Description derived from published bibliography.
Available also through the Library of Congress web site as raster image.