Big Spring Bog Natural Area Preserve is a 50-acre (20 ha) Natural Area Preserve located in Grayson County, Virginia.

The terrain is hilly, and within its borders is Chestnut Creek, a tributary of the New River.

[1] The preserve is owned and maintained by the Virginia Department of Conservation and Recreation, and is open to public visitation only through prior arrangement with a state-employed land steward.

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