U.S. Sen. Blanche Lincoln of Arkansas, 1 of 2 senators on the Migratory Bird Conservation Commission, announced the purchase.
The refuge is an important stop for migratory birds and provides a rare piece of undisturbed bottomland hardwood forest land in the Mississippi Valley region.
The tract is in the lower Cache River/White River floodplain, which is prime territory for migrating waterfowl. Refuge lands border the tract on three sides, and the Fish and Wildlife Service is to restore the land so it can be used by migrating birds.
The refuge covers more than 56,000 acres in Jackson, Monroe, Prairie and Woodruff counties in east-central Arkansas.