The 185-acre Garrison School Forest includes the summit and slopes of Fort Hill and steep ridges running east almost to Route 9. Fort Hill overlooks the Hudson River directly across from the United States Military Academy at West Point. It forms the center of the eastern rampart of the Hudson Highlands. Fort Hill received its name because a Revolutionary War fortification, the South Redoubt, is located on the summit. The South Redoubt and neighboring North Redoubt were part of Fortress West Point, a series of fortifications on the west and east banks of the Hudson River designed by military engineer Tadeusz Kościuszko. A redoubt is an earthwork built of earth, sod and timber. In Historic Structures Report on the Redoubts of West Point, Douglas R. Cubbison describes how the North and South Redoubt were designed and built. See the more extensive Revolutionary War History page within this site for more information.