Title: Niagara River, N. Y. Letter from the Secretary of War, transmitting, with a letter from the Chief of Engineers, report on preliminary examination of Niagara River, N. Y., with a view to securing a depth of 18 feet from Black Rock Harbor to the foot of Sugar Street, Niagara Falls, N. Y
Subjects: Dredging, Hydrography
Places: Niagara River (N.Y. and Ont.)