The Woolly Hollow State Park is a state park and recreation area in Greenbrier, Arkansas. It is best noted for its unique beginnings.

Created in the 1930s, the Woolly Hollow State Park was originally a site used by Dr. Hugh Bennett for soil studies. Later on, the CCC or the Civilian Conservation Corps and the WPA or the Works Progress Administration built a dam and lake that were used for watershed research. It was initially known as the Centerville County Park. It was named after the Woolly family who used to homestead the land in the area before Dr. Bennett came along.

Today, visitors of the Woolly Hollow State Park can enjoy boating, kayaking, canoeing, camping, picnicking, swimming, and fishing at the site. There?s also the Woolly Cabin which offers historic information about the area.