Moquah Barrens Research Natural Area is a 636-acre (257 ha) area of pine barrens in Bayfield County, Wisconsin.

[1] It is located within the Chequamegon-Nicolet National Forest.

[2] The area was designated a Wisconsin State Natural Area in 1970 and a National Natural Landmark in 1980.

The source of the Flag River is located within the northwest corner of the natural area.

This article about a location in Bayfield County, Wisconsin is a stub.