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Running trails & routes
United States
Maine
Waldo County

Hills to Sea Trail

Moderate

4.8

(9775)

15,612

runners

Hills to Sea Trail

01:11

9.61km

90m

Running

Jog the moderate Hills to Sea Trail, a 6.0-mile route with 305 feet of elevation gain, winding through diverse Maine landscapes.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

4.13 km

Hills to Sea Trail

Highlight (Segment) • Trail

The Hills to Sea Trail runs from Unity to Belfast. It is well maintained and well signed for the entire length of the trail. This end near Belfast is single track that winds through the woods.

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B

9.61 km

End point

Parking

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Way Types & Surfaces

Way Types

9.55 km

< 100 m

Surfaces

9.36 km

148 m

< 100 m

< 100 m

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Elevation

Elevation

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

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Weather

Powered by Foreca

Today

Wednesday 22 July

26°C

17°C

49 %

Additional weather tips

Max wind speed: 20.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the overall difficulty of the Hills to Sea Trail?

The entire 47-mile trail is generally rated as easy to moderate. However, its varied terrain means difficulty can fluctuate. Some sections are quite easy, while others, like the Frye Mountain or Hogback Mountain segments, feature moderate to steep inclines and require good fitness.

What kind of terrain can I expect on the trail?

You'll encounter a diverse mix of surfaces. Expect rough ground with roots in forested areas, as well as portions along dirt or paved country lanes. There are relatively flat and rolling sections, undulating terrain, and even a steep climb on well-made stairs. Wetlands are crossed via bog bridges, and some stream crossings may require shallow wading.

What are the main access points and parking for the Hills to Sea Trail?

The trail spans 47 miles, connecting Unity to Belfast. While specific parking areas aren't detailed, access points are available at various locations along its length. Given it traverses private land, look for designated trailheads or public access points in towns like Unity and Belfast.

Is the Hills to Sea Trail dog-friendly?

The trail traverses private land with permission from over 60 landowners. While dogs are generally welcome, it's crucial to respect private property rules, keep dogs leashed, and clean up after them to maintain good relations with landowners.

What is the best season to visit the Hills to Sea Trail?

The trail offers a diverse experience throughout the year. Spring and fall provide pleasant temperatures and vibrant scenery. Summer is also popular, but be prepared for warmer weather. Winter running is possible, but some stream crossings might be impassable, and specific tips for winter conditions would be advisable.

Do I need a permit or pay an entrance fee for the trail?

No, there are no specific permits or entrance fees required to access the Hills to Sea Trail. However, as it crosses private land, respectful use and adherence to trail guidelines are essential.

What kind of scenery and wildlife can I see along the way?

The trail offers rich and varied scenery, including farmlands with cornfields, mature forests, hemlock forests, and northern white cedar swamps. You'll pass picturesque streams like Sandy Stream, enjoy expansive views from farm fields, and might spot wildlife such as nuthatches, or observe peaceful wetlands and beaver ponds.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Hills to Sea Trail, Belfast Rail Trail, and other segments of the Hills to Sea Trail, creating a network of over 85 miles of footpaths.

Is the Hills to Sea Trail suitable for fast-paced running events?

While the trail can be run, it was designed to encourage a slower pace. Organized running events are generally not permitted, as some sections are not ideally suited for fast-paced running due to varied terrain and the nature of private land crossings.

How is the trail marked for navigation?

The trail is well-maintained and clearly marked. You can navigate easily by following the blue blazes and distinctive yellow 'Hills to Sea' logo signs along the route.

What makes this trail unique compared to others in Maine?

The Hills to Sea Trail is unique for being the third longest footpath in Maine, spanning 47 continuous miles. It notably traverses private land with permission from over 60 landowners, highlighting community involvement. It also offers a comprehensive immersion in Maine's inland and coastal landscapes, connecting communities, schools, and farms.

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Belfast Rail Trail

00:52h

7.21km

50m

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