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Chart of the head of navigation of the Potomac River - surveyed by order of the Sec. of War for the Corporation of Georgetown D.C. with a view to the improvement of the Georgetown Channel

Relief shown by hachures. Depths shown by contours and soundings. Oriented with north toward the upper left. Includes note. DCP

Date
1857
Mapmaker / publisher
Burgess, R. W.; Woodruff, I. C.; Callahan, Denis; United States. Army. Corps Of Topographical Engineers; United States. Congress Senate
Place
Virginia
Archive
Library of Congress (via Wikimedia Commons)
Type
chart
Original size
12,420 × 7,966 pixels

Public domainsafest

Reason: its maker died more than 100 years ago.

Read from: Commons licence category: PD-old-100-expired; no CC BY, CC BY-SA, GFDL or deletion tag on the file page.

Credit line

"Chart of the head of navigation of the Potomac River - surveyed by order of the Sec. of War for the Corporation of Georgetown D.C. with a view to the improvement of the Georgetown Channel" (1857). Burgess, R. W.; Woodruff, I. C.; Callahan, Denis; United States. Army. Corps Of Topographical Engineers; United States. Congress Senate. Library of Congress, Geography and Map Division, via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Chart_of_the_head_of_navigation_of_the_Potomac_River_-_surveyed_by_order_of_the_Sec._of_War_for_the_Corporation_of_Georgetown_D.C._with_a_view_to_the_improvement_of_the_Georgetown_Channel_LOC_87695765.jpg

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