Popular among hunters, hikers, birders and other outdoor enthusiasts. Topography of the 2,565-acre area varies from flat to gently rolling. Swampy slough areas dominate nearly a third of the acreage, but the remaining portions are prairie restorations, open fields, cultivated areas or timberlands. Many of these areas have been specially planted and managed to provide more food and cover for a variety of wildlife species. Native prairie plants are found in many portions of the Green River Area.