The area of Fern Ridge Wildlife Area is 20.275 square kilometers.
Fern Ridge Wildlife Area was created in 1957.
The area of Fern Cave National Wildlife Refuge is 805,324.4280576 square meters.
The area of Blue Ridge National Wildlife Refuge is 3,630,030.2108928002 square meters.
The area of Grays Lake National Wildlife Refuge is 78.509 square kilometers.
The area of Lake Wales Ridge National Wildlife Refuge is 4,831,946.5683456 square meters.
The area of Pusch Ridge Wilderness Area is 228.364 square kilometers.
The area of Blue Ridge Wilderness Area is 185.087 square kilometers.
The area of Denman Wildlife Area is 7,122,467.303424001 square meters.
The area of Spenceville Wildlife Area is 46.328 square kilometers.
The area of Blue Ridge Berryessa Natural Area is 3,237.485 square kilometers.
The area of Chestnut Ridge Natural Area Preserve is 942,917.5464192 square meters.
The area of Pine Ridge National Recreation Area is 26.709 square kilometers.