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Capitol Planning Region

Onion Mountain Red Trail

Easy

Onion Mountain Red Trail

00:33

1.81km

40m

Hiking

The Onion Mountain Red Trail offers a short but surprisingly rugged hike through mature forests of 80 to 120-year-old oak and hemlock. This 1.1-mile (1.8 km) route, rated easy, takes about 32 minutes to complete with only 125 feet (38 metres) of elevation gain, but don't let the stats fool…

Last updated: June 9, 2026

Waypoints

A

Start point

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640 m

Viewpoint

Viewpoint

1.10 km

Viewpoint

Viewpoint

B

1.81 km

End point

Parking

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Way Types & Surfaces

Way Types

1.69 km

< 100 m

< 100 m

Surfaces

1.72 km

< 100 m

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Elevation

Elevation
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Highest point (190 m)

Lowest point (100 m)

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Weather

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Monday 19 October

17°C

1°C

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Frequently Asked Questions

How long does it typically take to hike the Onion Mountain Red Trail?

The Onion Mountain Red Trail is a relatively short hike, taking approximately 30-35 minutes to complete. It's an easy route, perfect for a quick outdoor escape.

Is the Red Trail suitable for beginners or families with children?

Yes, with its 'easy' difficulty rating and short distance of about 1.8 km, the Red Trail is generally suitable for beginners and families. However, be aware that the trail is noted as 'not well cleared' in some sections, which might present a slightly more rugged experience than a perfectly manicured path. The ground can also become very wet after rains.

What is the terrain like on the Onion Mountain Red Trail?

The Red Trail traverses a wooded, rocky mountainside within Onion Mountain Park. While some areas are relatively flat, others can be more challenging. The trail is described as 'not well cleared,' suggesting a more natural and rugged path. Expect varied ground, and be prepared for potentially wet conditions after rainfall.

Where can I park to access the Onion Mountain Red Trail?

While specific parking areas for the Red Trail aren't detailed, Onion Mountain Park in Simsbury, Connecticut, is the access point. Look for designated parking within or near the park boundaries. There are no shuttles required for access.

Are dogs allowed on the Onion Mountain Red Trail?

Yes, dogs are generally welcome on trails within Onion Mountain Park. However, it's always best to keep your dog on a leash and practice Leave No Trace principles by cleaning up after them.

Do I need a permit or have to pay an entrance fee for Onion Mountain Park?

Based on available information, there are no specific permits or entrance fees required to access Onion Mountain Park or its trails, including the Red Trail. It appears to be a publicly accessible park.

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

The Onion Mountain Red Trail can be enjoyed throughout the year, but spring and fall offer pleasant temperatures and beautiful scenery. Spring brings blooming flora, while autumn showcases vibrant foliage. Be mindful that the ground can become very wet after rains, so consider drier periods or wear appropriate footwear.

Does the Red Trail intersect with other trails in Onion Mountain Park?

Yes, the Red Trail is part of a larger network within Onion Mountain Park. This route specifically covers 100% of the Red Trail and also passes through sections of the White Trail (59%), Orange Trail (56%), Blue Trail (34%), and Yellow Trail (22%). This offers opportunities to combine routes for a longer hike.

Are there any viewpoints or landmarks along the Red Trail?

While the Red Trail itself is primarily focused on the wooded, rocky terrain, Onion Mountain Park offers diverse scenery. The Blue-Orange Trail in the park is specifically noted for magnificent views from the ridge. The Red Trail provides a good opportunity to experience the park's 80-120 year old oak and hemlock trees, small wetlands, and seasonal brooks.

What kind of wildlife or plants might I see on the trail?

Onion Mountain Park is home to a variety of flora and fauna. You can expect to see mature oak and hemlock trees, with an understory of smaller hemlocks, viburnum, and witch hazel. The park also provides habitat for various bird species, including the winter wren and different warblers, especially during migratory seasons.

What should I wear or bring for a hike on the Red Trail?

Given the 'not well cleared' nature and potential for wet conditions, sturdy hiking shoes or boots are recommended. Dress in layers suitable for the weather, and consider bringing water, especially on warmer days. Insect repellent might be useful during warmer months. As always, carry a map or use a navigation app like komoot to stay on track.

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