Carroll County, NH
Madison Boulder, a National Natural Landmark in Carroll County, NH.
National Natural Landmarks in this county include:
- Heath Pond Bog
- Madison Boulder
- Nancy Brook Virgin Spruce Forest and Scenic Area
- White Lake Pitch Pine
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.