natural bridge

McCauley Road, off Rte. 8
P.O. Box 1757, North Adams 01247
(413) 663-6392
Off-season: (413) 499-4262 Mt. Greylock Visitors Center

Discover a geologic wonder at this 48 acre park. Examine the only naturally formed white marble arch and man-made white marble dam in North America, and tour an abandoned marble quarry. The "natural bridge" for which the park is named, according to geologists, is 550 million year old bedrock marble, carved into an arch by the force of glacial melt water over 13,000 years ago; one of the best places in New England to demonstrate the effects of glaciation. The bridge spans rushing Hudson Brook as it twists and tumbles through a steep 60-foot deep gorge.

Noted Romantic writer, Nathaniel Hawthorne, visited here in 1838 and recorded his experience about Hudson's Cave (or Falls) in An American Notebook "The cave makes a fresh impression on me every time I visit it ... so deep, so irregular, so gloomy, so stern." The site was an active commercial quarry from 1810 to 1947, producing coarse-grained white marble used in local buildings and cemeteries. From 1950 to 1983 it was a privately-owned and popular roadside tourist attraction off the Mohawk Trail. Natural Bridge became a state park in 1985, to preserve its unique geologic features.

In the summer months, knowledgeable park interpreters are on hand to explain the natural forces that created the bridge and its more recent human-related history. There is a 0.25 mile walkway above and through the chasm, and a 0.5 mile wooded walking trail.

Trail Map


Park Directions

Natural Bridge State Park is located in the northern Berkshires in western Massachusetts.

From East or West/Rte. 2: Take MA Rte. 2 to North Adams and intersection with MA Rte. 8 north. Turn onto Rte. 8 north and continue for 0.5 miles to McCauley Road and park entrance on the left. Follow the dirt road; it soon becomes paved.

From North: From VT Rte. 8/100 at the Massachusetts-Vermont line, follow MA Rte. 8 south for 3 miles. Turn right on McCauley Road and park entrance. Follow the dirt road; it soon becomes paved.

From South/MassPike (I-90): Take Exit 2 in Lee and follow US Rte. 20 west to US Rte. 7 north to Williamstown for 31.7 miles. Take MA Rte. 2 east for 6.2 miles, through downtown North Adams to MA Rte. 8. Turn left onto Rte. 8 north and follow for 0.5 miles. Turn left onto McCauley Road and park entrance. Follow the dirt road; it soon becomes paved.

Recreational Opportunities


Things to know before you go...

The park is open from 9am to 5pm, Memorial Day through Columbus Day. Parking fee is $2. Parking is free for ParksPass holders, vehicles with Handicapped, disabled veteran plates/placard, and seniors 62 and above with the Massachusetts Senior Pass.

Picnicking: Tables and grills are available. Please carry-in, carry-out all belongings and trash.

Universal Access is limited, please inquire.

Pets are permitted. Must be on a 10-foot maximum leash and attended at all times. Must have proof of current Rabies vaccine. Please be courteous and clean up after your pet.

School and group tours: Guided tours are available. Please call ahead for details.

Buses are welcome. A $30 parking fee applies.

Special events: the park is available for special events. Please call for more information.

Prohibited: Swimming (dangerous conditions exist), rock climbing, defacing rocks and alcoholic beverages.