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Callahan Park, Henry's Hill, and Welch Reservation Loop

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Callahan State Park

Callahan Park, Henry's Hill, and Welch Reservation Loop is a 14.2 mile lightly trafficked loop trail located near Sudbury, Massachusetts that features a lake and is rated as moderate. The trail is primarily used for hiking, walking, and running and is accessible year-round. Dogs are also able to use this trail.

Length 14.2 mi Elevation gain 1,804 ft Route type Loop
Dog friendly Kid friendly Hiking Walking Running Forest Lake Wild flowers Wildlife
Description
Waypoints (0)

A pretty good trail for a long run. There are many intersecting trails, not always well marked, so you need to pay close attention to your route on the app as you go.

Weather
UV Index
Daylight
Reviews (43)
Photos (574)
Recordings (40)
Completed (62)
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Neal Shrier
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Hiking

Nice to hike it on a beautiful fall day! Lots of leaves, so you need to watch your footing on steeper grades. Poorly marked at a lot of locations.

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Alexander Kaplan
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Hiking
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brittany battis
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Hiking

Not too difficult, good ascents and descents. Got a little confusing trying to cross private property / roads towards Callahan state park. But with some detours still a good longer route.l

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Lilian Dolbier
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Hiking

Nice trail, we got lost a few times, not well marked, but nice.

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Alexander Kaplan
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Hiking
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Dan McDonald
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HikingGreat!

Lots of intersecting trails. Fair amounts if traffic and dogs off leash (then quickly leashes), despite 74,000 dog leash required signs. Good mix of ascents and descents. Decent workout and day on the trails!

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Emily Cheng
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Hiking

No people no dog n beautiful foliage

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Ludmilla Dure
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Hiking
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Tonia Chu
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Hiking
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Darryl Bryans
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Hiking

nice long trail with lots of elevation (great workout) but the portions on the road and going on private property are why I rate it 3 instead of 5 stars

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Ray Weaver
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RunningPrivate property

A pretty good trail for a long run. There are many intersecting trails, not always well marked, so you need to pay close attention to your route on the app as you go. As others have mentioned, there are a couple of spots where you’re routed onto private property. When in doubt check the map for a trail that will connect you back on course.

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Bill Millette
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Hiking

We modified the route a little bit. Tried to avoid hiking on private property, which it seemed the original route did in a few spots. Also wanted to avoid roads. Added on a little loop at the end to ensure we were at or over 15 miles as we were working with a Scout working on his Hiking Merit Badge and this hike had to be at least 15 miles. Great day. Nice variety.

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Jill Rosario
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HikingMuddy

Went early spring hike at beginning of pandemic. Saw a total of five people Very long hike and for a brief moment, you are hiking behind some fancy houses. Highly recommend if you want a quiet day, good workout and a short drive.

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Stephanie Adams
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Hiking

Don't follow this map... it's very inaccurate and hard to follow plus 1 to 2 miles is on the road with no shoulder to walk on so very dangerous. Trail ended up being closer to 15 miles.

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Meaghan Williamson
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Hiking
First to Review

Fun trail but the hills were very slippery with the leaves on the slope so we had to extend the hike and go down brimstone for a safer descent with kids and dog.

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Brian Lin
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Hiking
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Elaine Chen
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Hiking
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Sosha S
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Hiking
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Elaine Chen
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Hiking
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Sosha S
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Hiking
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Jim Bourgeois
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Hiking
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Suzanne Kouri
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Hiking
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Colin Gaumont
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Hiking
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Eric Brown
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Hiking
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Ana Elisa Dos Santos
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Hiking
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Emily Ralen
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Hiking
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Kazakbaeva GulNaz
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Hiking
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Jack Poole
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Hiking
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Kunduz Kokobaeva
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Hiking
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Shirin KG
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Hiking
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Showing results 1 - 30 of 43