Felsenthal National Wildlife Refuge
Overview
 
The Felsenthal National Wildlife Refuge is a 64,902.14 acre (262.65 km2) wildlife refuge located in south-central Arkansas
Arkansas
Arkansas is a state located in the southern region of the United States. Its name is an Algonquian name of the Quapaw Indians. Arkansas shares borders with six states , and its eastern border is largely defined by the Mississippi River...

 in Ashley, Bradley
Bradley County, Arkansas
Bradley County is a county located in the U.S. state of Arkansas. The United States Census Bureau estimated the population to be 14,683 in 2006. The county seat is Warren. Bradley County is Arkansas's 43rd county, formed on December 18, 1840, and named for Captain Hugh Bradley, who fought in the...

, and Union counties. It is the world's largest green tree reservoir
Green tree reservoir
Green tree reservoirs consist of bottomland hardwood forest land which is shallowly flooded in the fall and winter.Studies have shown that the availability of flooded bottomland hardwood timber from late fall through early spring is critical to the breeding success of birds such as the mallard duck...

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The Felsenthal National Wildlife Refuge is a wetlands complex near Lake Jack Lee, which is located on the confluence of the Saline
Saline River (Ouachita River)
The Saline River is a tributary of the Ouachita River in the south central portion of the U.S. state of Arkansas.The Saline River begins in the eastern foothills of the Ouachita Mountains in Saline and Garland counties and is one of the last free-flowing rivers in the Ouachita River Basin...

 and Ouachita River
Ouachita River
The Ouachita River is a river that runs south and east through the U.S. states of Arkansas and Louisiana, joining the Tensas River to form the Black River near Jonesville, Louisiana.-Course:...

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