A general & particular plan of the island of Castle William near Boston, shewing the works in their original & present state, together with sections thro' the same. Carried on and survey'd under the direction of and by John Montrésor, Esqr., engineer extraordinary & Capt. Lieut. by order of the Honble: Thomas Gage, Esqr., Lieutenant General and Commander in Chief of His Majesty's forces in North America.

Scale 1:600; 50 ft. to an in.
Manuscript, pen-and-ink and watercolor.
Has watermarks.
Relief shown by shading.
Oriented with north toward the upper right.
Imperfect: Hole in center.
"No. 11."
Includes index to points of interest, inset of "A general plan of the island of Castle William shewing its situation with respect to the adjacent islands," 1:6,000, and two cross section views.
LC Maps of North America, 1750-1789, 937
Available also through the Library of Congress Web site as a raster image.
Vault
AACR2: 100