Portland, Maine: USGS topographic map, 1:62,500 (1891–1957)

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Portland, Maine: USGS topographic map, 1:62,500 (1891–1957)

USGS historical topographic quadrangle of Portland, Maine, at 1:62,500 (15 x 15 minute). 18 editions: 1891, 1893, 1916, 1941, 1957. Shows terrain by contour lines, rivers and lakes, roads, railroads, towns and buildings.

Date: 1891–1957
Mapmaker / publisher: U.S. Geological Survey
Place: Portland, Maine
Scale: 1:62,500
Collection: USGS Historical Topographic Map Collection
Archive: USGS Historical Topographic Map Collection
Type: USGS topographic map
Editions: 18
Footprint: 43.5° to 43.75° N, -70.5° to -70.25° E

Public domainsafest

Reason: a USGS map: a work of the US government, not protected by copyright in the US (17 U.S.C. 105).

Read from: USGS Historical Topographic Map Collection: maps made by the U.S. Geological Survey are US government works (17 U.S.C. 105).

Credit line

"Portland, Maine: USGS topographic map, 1:62,500 (1891–1957)" (1891–1957). U.S. Geological Survey, Historical Topographic Map Collection. Public domain. https://www.sciencebase.gov/catalog/item/5a8a4d07e4b00f54eb403430

What public domain means here

Need maps for a whole project? Add Find Any Map to Claude and ask for this one by its id: 97932.