Some articles on nnl, nnls:

List Of National Natural Landmarks In Delaware - Ownership
... The NNL program does not require designated properties to be owned by public entities ... Federal lands with NNLs include those administered by the National Park Service, National Forest Service, Bureau of Land Management, Bureau of Reclamation, Fish and Wildlife Service, Air Force, Marine Corps ... NNLs occur on state lands with various existing management designations forest, park, game refuge, recreation area, and preserve ...