• Map
    Upper Potomac park project to preserve the Great Falls and Palisades of the Potomac Covers Potomac River Valley between Watkins Island and Long Bridge. Shows existing and proposed parks. "September--1927." "Chart 28." "39872-29. (Face p. 60.) No. 1." Available also through the Library of Congress Web site as a raster image. Partially typewritten in upper margin of LC copy: [From the] National Capital Park and Planning Commission's "Plans and Studies--Washington and Vicinity ... 1928." DCP
    • Contributor: United States. National Capital Park and Planning Commission - Grant, U. S. (Ulysses S.) - Brown, Carey H. - Eliot, Charles W. (Charles William)
    • Date: 1927
  • Map
    Great Falls power, plan & profile of conduit Relief shown by contours. "To accompany report dated February 4th 1913." "Approved: W.C. Langfitt, Lieut. Colonel, Corps of Engineers, U.S. Army." In upper margin: Plate 3. In right lower margin: 35 sheets, sheet #3. Oriented with north toward the upper left. Includes profile of conduit. LC copy laminated and mounted on cloth backing. LC copy lacks other sheets. Available also through the Library of ...
    • Contributor: United States. Army. Corps of Engineers - Hardy, E. D. - Geological Survey (U.S.) - United States. Congress House
    • Date: 1913