The area of Chestnut Ridge Natural Area Preserve is 942,917.5464192 square meters.
The area of Chestnut Creek Wetlands Natural Area Preserve is 987,432.9670656 square meters.
The area of Crescent Ridge Dawn Redwoods Preserve is 202,342.82112 square meters.
The area of Pinnacle Natural Area Preserve is 2,881,361.7727488 square meters.
The Channels Natural Area Preserve was created in 2008.
The area of Blue Ridge Berryessa Natural Area is 3,237.485 square kilometers.
The area of Chub Sandhill Natural Area Preserve is 2,424,066.9970176 square meters.
The area of Cowbane Prairie Natural Area Preserve is 254,951.95461120002 square meters.
The area of Goshen Pass Natural Area Preserve is 3,787,857.6113664 square meters.
The area of Clover Hollow Natural Area Preserve is 101,171.41056 square meters.
The area of Hickory Hollow Natural Area Preserve is 1,027,901.5312896001 square meters.
The area of Grassy Hill Natural Area Preserve is 5,827,473.248256 square meters.
The area of Dameron Marsh Natural Area Preserve is 1,278,806.6294784 square meters.