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Routes
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Middlesex County

Lost Lake Recreation Area

Routes
Hikes
Middlesex County

Lost Lake Recreation Area

The best family-friendly hikes and walks in Lost Lake Recreation Area

4.9

(5)

62

hikers

7

hikes

Family friendly hiking trails in Lost Lake Recreation Area are characterized by a network of paths that traverse varied terrain, including rail trails and forest loops. The region offers routes with gentle elevation changes, making them suitable for hikers of all ages. Many trails follow former railway lines, providing flat and accessible surfaces.

Best family friendly hiking trails in Lost Lake Recreation Area

  • The most popular family friendly hiking route is Nashua River Rail Trail – Groton School Pond loop…

Last updated: May 13, 2026

4.7

(3)

16

hikers

#1.

BoundaryTrail

6.47km

01:47

110m

120m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

1

hikers

64.8km

16:34

250m

240m

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard

5

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Tips from the Community

DrSvend
September 20, 2025, Yellow Trail Trophy Chasm Bypass to Red Trail to Summit

This site is full of historical items such as an Ice Age melt created gorge, the American Telephone Transcontinental cable, the U.S. military WWII redar research site, and a (lower than summit) great lookout rock. Friendly vertical well groomed trails. Highly recommend!!!

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This a great easy vertical adventure near metro northwest Boston along groomed trails through the woods, with lots of interesting historical features such at the Ice Age carved Trophe Chasm (bordered with large granite boulders), and more modern items such as the ATT Transatlantic Cable, and a World War II era Air Force radar testing station. Well worth it in any weather, never crowded, trailhead parking. Highly recommend.

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This is the northern terminus of the Nashua River Trail. It runs from this point all the way to Ayer, Massachusetts. The trail passes through J. Harry State Forest and is tree lined for a majority of its trajectory.

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Its a nice ride from Nashua to Ayer

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J. Harry Rich State Forest is a state-owned woodland just north of Groton. This is a beautiful woodland that has a network of wide-maintained trails and a selection of other trails for visitors to enjoy hiking, biking, fishing, and wildlife watching. The paved Nashua River Rail Trail borders the eastern side of the forest, and Pepperell Pond flanks the western side of it. The forest is teeming with all manners of wildlife, but in addition, it has many other quirky features; there is a charming bridge, a boat house, and then there are the glorious riverside views. There is plenty to occupy you in this forest.

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Mostly consisting of oak woodlands, this area features miles of trails that wind throughout. Two prominent features include Lookout Rock, providing stunning views, and Tophet Chasm.

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Tyler Sanders
February 5, 2024, Lookout Rock

This rocky lookout stands at 475 feet high, offering a view to the south, where you can see the John Hancock and Prudential Tower buildings.

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Lisa
January 29, 2024, Nashua River Rail Trail

This paved rail trail winds through a wealth of green space and water bodies. Watch out for unexpected wildlife sightings!

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Frequently Asked Questions

How many family-friendly hiking trails are available in Lost Lake Recreation Area?

This guide features 6 family-friendly hiking trails in the Lost Lake Recreation Area. Among these, 4 are rated as easy, making them perfect for families with younger children or those looking for a relaxed outing.

Are there any easy loop trails suitable for families with young children?

Yes, for an easy and engaging loop, consider the Nashua River Rail Trail – Groton School Pond loop from Groton. It's just over 3.6 km long with minimal elevation gain, offering a pleasant stroll around the pond. Another great option is the Groton School Pond loop from Ayer, which is slightly longer at 7.4 km, also with very little elevation change.

What kind of scenery and natural features can we expect on these family-friendly trails?

The trails in Lost Lake Recreation Area offer a mix of natural beauty, often winding through forests and alongside water bodies. You can expect peaceful environments, opportunities for birdwatching, and a chance to experience the local flora and fauna. Some areas might feature old-growth stands or scenic lake views, providing a refreshing escape into nature.

Are dogs allowed on the family-friendly hiking trails?

Many trails in recreation areas like Lost Lake are dog-friendly, but it's always best to check specific regulations for each trail or park section. Generally, if dogs are permitted, they should be kept on a leash to protect wildlife and ensure a pleasant experience for all visitors. Please remember to clean up after your pet.

What is the best time of year to visit Lost Lake Recreation Area for family hiking?

Spring, summer, and fall are generally the most popular seasons for family hiking in the Lost Lake Recreation Area. Spring brings blooming wildflowers, while summer offers warm weather perfect for lakeside activities. Fall showcases beautiful foliage. Always check local weather conditions before heading out, especially for potential rain or early snow in higher elevations.

What should we wear or bring for a family hike in this area?

For a comfortable family hike, we recommend wearing sturdy, comfortable shoes and dressing in layers to adapt to changing weather. Don't forget essentials like water, snacks, sunscreen, insect repellent, and a basic first-aid kit. Depending on the season, a hat and rain gear can also be very useful.

Is parking readily available at the trailheads?

Parking availability can vary by trailhead. Many popular recreation areas, including Lost Lake, typically offer designated parking lots. However, during peak seasons or on weekends, these can fill up quickly. It's advisable to arrive early, especially for popular routes like the BoundaryTrail, to secure a spot.

Are there any longer, more challenging trails for families with older children?

For families seeking a longer adventure, the Groton Town Forest Race 9.5 mile Loop offers a more challenging experience at over 20 km. While rated difficult, it provides a substantial distance for older, more experienced family hikers. Another option is the Nashua River Rail Trail, which is significantly longer and also rated difficult, suitable for very active families.

What do other hikers enjoy most about hiking in Lost Lake Recreation Area?

The Lost Lake Recreation Area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the peaceful atmosphere, the well-maintained trails, and the beautiful natural surroundings that make for an enjoyable family outing.

Are there any specific safety considerations for hiking with family in this area?

When hiking with family, always stay on marked trails and supervise children closely. Be aware of your surroundings, especially in areas where wildlife might be present. It's a good practice to carry a map or use a navigation app, inform someone of your hiking plans, and check weather forecasts before you go. In some Lost Lake locations, like Yellowstone, being aware of larger wildlife such as bears and bison is crucial, and hiking in groups is recommended.

Most popular routes in Lost Lake Recreation Area

Hiking in Lost Lake Recreation Area

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