Collection search - Lake Ontario, Coast Chart No. 4. Charlotte to Thirty Mile Point. Projected from a trigonometrical Survey executed under the orders of Major C.B. Comstock, Corps of Engineers, Bvt. Brigadier Gen. U.S.A. in 1875. Published in 1878, Survey of the Northern and North Western Lakes. Made in obedience to acts of Congress, and orders from the Headquarters of the Corps of Engineers, War Department. [cartographic material]

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