Stretching from East Hampton all the way to the Massachusetts border in East Thompson, the Air Line State Park Trail is mecca for hiking, biking and horseback riding in Eastern Connecticut. The trail was built along the old Air Line Railroad route, which offered a direct path from Boston to New York beginning in the late 1800s. The route was heavily damaged in the mid 1950s from the floods that ransacked Connecticut and was no longer operational. The state took over the line, and the more than 50 miles of trails that were constructed along the old railroad route are generally flat and broad. Perhaps the greatest point of interest along the trail is the Lyman Viaduct, the tallest railroad bridge in Connecticut that spanned 1,100 feet across a deep gorge above Dickinson Creek. The best access to the viaduct is through Salmon River State Forest in Colchester

Awesome, beautiful and not to be missed

Great for stroller walking! It was a hot day but trail is covered with trees making enjoyable walk.

I love this trail. I start from the Day Pond State Park parking lot, and usually take the blue-blazed trail. When it comes to the first big wide opening into the woods, I head straight, and do not immediately follow the blue trail signs. This leads up a few uphills to get your heart going...then it flattens out for most of the rest. There's a nice waterfall, and a few man-made bridges along the way. Trail markings are a bit difficult to spot now and then, but just go back to the most recent one and look around - eventually you'll see it.

Great beautiful scenery.

i use the East Hampton trail head for this trail. love the river for sceanery (lower trail) bit buggy though. i suppose the water is to thank for that. the actual Airline trail (upper trail) is pretty straight and not much to look at in the area i was in. just lots of woods. there are Munzee tags to find also if thats your thing. i remember jumping off the viaduct in this area when i was in high school. good times. enjoy.

5 miles! It keeps going and going all the way to Willimantic. It's actually more like 20! Then you have to turn around and go back. We actually did a total of 28 miles with a 9 year old and 14 years old and they did it. It was absolutely beautiful and I recommend to all families. Just keep track of the mile markers.