For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
Wesley Chapel Gulf
Probably the largest sinkhole in Indiana, Wesley Chapel Gulf is the most significant and spectacular feature of the Lost River Basin, one of the world's great karst areas. Located within the Hoosier National Forest, the site is a classic illustration of a uvula, a feature formed by the coalescence of a series of sinkholes.
Location: Orange County, IN
Year designated: 1972
Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.
Last Updated: June 28, 2012