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Hiking trails & Routes
United States
Massachusetts
Berkshire County

Keystone Arch Bridges Trail

Easy

2.8

(3)

49

hikers

Keystone Arch Bridges Trail

01:59

7.25km

120m

Hiking

Embark on an easy hike along the Keystone Arch Bridges Trail, a 4.5-mile (7.3 km) route that guides you through remote woods. You'll gain 388 feet (118 metres) in elevation over an estimated 1 hour and 59 minutes, making it a perfect outing for a couple of hours. The path winds through a beautiful beech-maple forest, offering picturesque views of the Westfield River. A highlight is discovering the historic stone arch bridges, engineering marvels from the 1840s built without mortar or steel. Keep an eye out for a waterfall early on where a side stream joins the river, adding to the scenic charm.

Before you set out, know that the trail is mostly a singletrack dirt path. Some sections can be rocky with jutting rocks and holes, which may form puddles after rain. Be prepared for roots and rocks, as the trail can get muddy. Exercise caution due to some extreme drop-offs along the route; always keep children and pets closely attended. The vibrant red, orange, and yellow foliage makes autumn an especially rewarding time to visit.

This trail offers a unique blend of natural beauty and historical engineering, setting it apart in the region. The series of historic stone arch bridges are a testament to 19th-century construction, built without mortar or steel. Located in the Walnut Hill Wildlife Management Area, the route provides a peaceful escape into nature. It's a chance to explore a significant piece of local history while enjoying the tranquil forest environment.

Last updated: April 23, 2026

Waypoints

A

Start point

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1

865 m

Keystone Arch Bridge

Highlight • Bridge

4.82 km

Waterfall

Waterfall

B

7.25 km

End point

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Way Types & Surfaces

Way Types

5.59 km

1.66 km

Surfaces

7.24 km

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (270 m)

Lowest point (220 m)

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Weather

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Today

Monday 8 June

27°C

9°C

0 %

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Frequently Asked Questions

Where can I park to access the Keystone Arch Bridges Trail?

Parking is available at the trailhead. While specific parking lot names aren't provided, the trail is located within the Walnut Hill Wildlife Management Area, which typically has designated access points for visitors.

Is the Keystone Arch Bridges Trail dog-friendly?

Yes, the trail is generally dog-friendly. However, as it's located within the Walnut Hill Wildlife Management Area, it's always best to keep your dog on a leash to protect wildlife and ensure a safe experience for all hikers. Be mindful of potential drop-offs and rocky sections.

When is the best time of year to hike this trail?

The trail offers beauty year-round, but autumn is particularly stunning with its vibrant display of red, orange, and yellow foliage. Spring and summer also provide lush green scenery. Be prepared for muddy conditions, especially during wet seasons, regardless of the time of year.

Are there any permits or fees required to hike here?

No, there are typically no permits or entrance fees required to access the Keystone Arch Bridges Trail, as it's part of the Walnut Hill Wildlife Management Area, which is generally open to the public for recreational use.

What are the main points of interest along the trail?

The most notable features are the historic Keystone Arch Bridges, remarkable feats of 19th-century engineering. You'll also encounter a waterfall, remote beech-maple forests, remnants of old house stone foundations, and the ruins of a former artist colony, including a kiln chimney. The trail also runs alongside the first designated wild and scenic river in Massachusetts, the Westfield River.

What is the terrain like on the trail?

The trail is primarily a singletrack dirt path, but sections can be rocky with jutting rocks and holes, which may form puddles after rain. Hikers should be prepared for roots and some slightly moderate inclines, despite its overall easy rating. Caution is advised due to some extreme drop-offs in certain areas.

How long does it typically take to complete the hike?

The main trail is about 2.2 to 2.5 miles one way, making a round trip of up to 5 miles. With an average duration of about 2 hours, you can expect to spend anywhere from 2 to 4 hours depending on your pace and how much time you spend exploring the bridges and ancillary trails.

Is the trail suitable for beginners or families with children?

Yes, it's generally considered easy to moderate and suitable for various ages and skill levels. However, some sections are rocky, and there are extreme drop-offs, so children and pets should be attended at all times. It's a great option for families looking for a unique outdoor experience.

Does the trail intersect other well-known paths?

Yes, while the primary route is the Keystone Arch Bridges Trail, it also passes through sections of the Herbert Cross Road and the Boston and Albany Railroad. Additionally, there are numerous ancillary trails that lead down to the Westfield River at each bridge.

What kind of scenery and wildlife can I expect to see?

You'll hike through remote beech-maple forests, enjoying picturesque views of the Westfield River and its impressive rapids. Keep an eye out for a waterfall early on. While specific wildlife sightings aren't guaranteed, the area is rich in natural beauty, offering opportunities for birdwatching and enjoying the serene forest environment.

What should I know about trail conditions or what to pack?

The trail can be muddy, especially after rain, and has roots and rocks, so sturdy, waterproof hiking boots are recommended. Given the potential for puddles and uneven terrain, trekking poles can be helpful. Always bring water, snacks, and be prepared for varying weather conditions. Due to some extreme drop-offs, exercise caution and supervise children and pets closely.

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