Big River State Forest, State forest in Henderson County, Illinois, US.
Big River State Forest is a woodland spanning roughly 2,900 acres in Henderson County, Illinois, combining hardwood forests and wetland areas that support deer, foxes, and many bird species. The landscape includes rolling terrain with sandy soils, seasonal water features, and dense vegetation typical of the Mississippi River region.
The forest began in 1925 as a small protected area and grew significantly through land acquisitions in the 1940s and an agreement with the U.S. Army Corps of Engineers. This expansion established it as a major reforestation project in the region.
The forest demonstrates sound forestry practices through educational programs, highlighting the transformation from scrub hardwood to profitable pine forests on sandy soil.
The forest offers roughly 60 miles of unpaved firebreak trails suitable for hiking and horseback riding, with camping and picnic areas distributed throughout. Trail conditions vary by season and weather, so checking current conditions beforehand helps plan your visit.
The Milroy Plantation, established in 1928, contains red, white, and jack pines that grow quite tall and represent the oldest pine plantation effort in the area. This planted woodland stands out from the natural hardwood forest and demonstrates an early experiment in forest management.
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