Off Route 113
Madison, NH 03849
Phone: 603-823-7722, ext. 757
Madison Boulder Natural Area is home to the largest known erratic in New England, and among the largest in the world. Madison Boulder is a huge granite rock measuring 83 feet in length, 23 feet in height above the ground, 37 feet in width, and weighs upwards of 5,000 tons! The 17-acre site was acquired by the state of N.H. in 1946. In 1970 Madison Boulder was designated a National Natural Landmark by the U.S. Department of the Interior because the enormous erratic, "is an outstanding illustration of the power of an ice sheet to pluck out very large blocks of fractured bedrock and move them substantial distances." How did it get here? Our Glacial Past
Hours of Operation: While the park day-use facilities are closed for the season, the park lands are always open for recreation. Should an emergency arise during your visit, please call 911 for assistance.
Are pets allowed at Madison Boulder Natural Area?
Pets are permitted in the park. See theNH State Parks Pets Policy for more information.
Keep Your Parks Clean: Through the Carry-In/Carry-Out Program, you can help us keep your parks clean and beautiful by carrying out whatever you carry in. Thank you for your cooperation and remember to recycle.
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Access for Persons with Disabilities: Please contact the park office directly for information regarding disability access needs. |