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Hoover-dam-contour-map

Hoover Dam plan. 1930

Date
1930
Photographer / author
Mapmakers in employ of U.S. Department of Interior; signatures not readable.
Archive
Wikimedia Commons
Type
map
Original size
1,520 × 580 pixels

Public domainsafest

Reason: a US government work.

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

Credit line

"Hoover-dam-contour-map" (1930). Mapmakers in employ of U.S. Department of Interior; signatures not readable., via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Hoover-dam-contour-map.jpg

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