Fort Hill Wildlife Management Area is located between the railroad tracks and the Connecticut River from just north of the Maidstone bridge to the area known as Masons. Public access is from US Route 3, however, at the time of publication a designated parking area has not yet been constructed.

The Connecticut River frontage is a woodland habitat ranging from several feet to several hundred feet in width. The entire area, with the exception of a 3- to 5-acre access site, lies entirely within the Connecticut River floodplain. The eastern boundary is the Canadian National railroad tracks and the western boundary is 20,000 feet of river frontage. Approximately 50% of the land area is subject to annual flooding; 472 acres are upland habitat and 138 acres are wetlands.

There are 5 primary wetland sites due to beaver impoundments that are annually recharged from floodwaters, springs, and small tributaries. Habitat diversity ranges from semi-permanent wet meadows to permanent open marsh and shrub/scrub wetlands.