[Part of a map of the Hudson Highlands showing Forts Clinton and Montgomery.

Scale ca. 1:70,000 (not "1 English mile to a foot").
Manuscript, pen-and-ink and watercolor.
Relief shown by hachures and shading.
Has watermarks.
Northern of two or more sheets.
Incorrect scale note in pencil.
Shows a few place names in Orange County very lightly in pencil.
In lower left corner: H.R.
On verso, in ink: Major Dornford, Roy. Engrs.
LC Maps of North America, 1750-1789, 1192
Available also through the Library of Congress Web site as a raster image.
Vault
AACR2: 651/1