These three Great Lakes maps are included in Letter from the Secretary of War, Transmitting Copies of the Reports of the Surveys of the Harbors of New Buffalo and Twenty-Mile Creek. The first map, Survey of the Mouth of the Galien River Michigan (dated 1835, 29.6 x 19.6"), covers the point where the Galien River meets Lake Michigan at New Buffalo. The waters of both the river and the lake are filled with soundings, and New Buffalo is shown in plan form. Surveyed by Liets. J. M. Berrien and E. Rose and drawn by Berrien. The others maps, Sketch of the Mouth of Elk Creek (14.0 x 10.8") and Map of a Part of the South Shore of Lake Erie in the Vicinity of the Twenty Mile Creek Pennsylvania (dated 1830, 15.3 x 10.9"), first appeared in a report in 1834. They focus on tributaries of Lake Erie and include soundings. The Elk Creek map was copied by Lt. Col. & Topographical Engineer James Kearny. The Twentymile Creek map (not to be confused with the Twenty Mile Creek in Ontario) features details of a proposed pier and was surveyed and executed by Thomas Forster and James Maurice Jr.

References: Claussen & Friis #234-35.

Condition: A

The maps are clean, bright, and nearly flawless. Disbound text has minor scattered foxing.