The Kentucky Division of Water's Wild Rivers Program has added 300 acres in Hart County to protect the natural environment of the Green River.
The property is on two tracts and includes frontage on the river, part of which is designated a Kentucky Wild River.
Energy and Environment Secretary Len Peters says the purchase will help protect what he said is the Ohio River system's most biologically diverse branch.
The cabinet says 135-acre Rush Island tract contains bottomlands that have been enrolled in conservation efforts to restore the natural habitats of native warm-season grasses.
The 165-acre Davis Bend tract includes moist bottomlands, forested bluffs and springs that are important to the river's water quality. The Wild Rivers Program will co-manage the property with the Kentucky chapter of The Nature Conservancy.