Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Hiking trails & Routes
Ireland
Mayo

Letterkeen Loop

Moderate

4.7

(43)

142

hikers

Letterkeen Loop

03:27

10.0km

280m

Hiking

Hike the moderate 6.2-mile Letterkeen Loop in Wild Nephin National Park, gaining 906 feet with mountain vistas and varied terrain.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Wild Nephin National Park

Waypoints

A

Start point

Parking

Get Directions

1

1.10 km

Maumaratta Stream Triangular Metal Bridge

Highlight • Bridge

A simple metal bridge, which has a slight triangular shape, helps the hiker to get across the Maumaratta River in a very comfortable way.

Translated by Google •

Tip by

2

4.28 km

Mullach na Buaile Hut

Highlight • Mountain Hut

Find the notebook and leave a comment for other hikers to read.

Tip by

3

6.09 km

At this point you can take a break and admire the surrounding landscape.

Translated by Google •

Tip by

4

6.39 km

From this point you have a great view over the landscape of the Ballycroy National Park with its wide swamps, slopes and river habitats.

Translated by Google •

Tip by

5

6.81 km

There is a nice series of rocky steps here for some firm footing under your feet. The views out over the surrounding hills and forest are also very pleasant.

Tip by

B

10.0 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

6.99 km

2.91 km

< 100 m

Surfaces

6.78 km

3.18 km

< 100 m

< 100 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (280 m)

Lowest point (30 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Thursday 7 May

11°C

5°C

23 %

Additional weather tips

Max wind speed: 18.0 km/h

to get more detailed weather forecasts along your route

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Frequently Asked Questions

Where does the Letterkeen Loop trail start and where can I park?

The Letterkeen Loop officially starts and finishes at the Brogan Carroll Bothy car park. This is also the primary parking area for the trail.

Is the Letterkeen Loop dog-friendly?

While dogs are generally welcome in Wild Nephin National Park, it's always best to keep them on a leash, especially given the presence of wildlife and livestock in the area. Please ensure you clean up after your dog to help preserve the natural environment.

What is the best time of year to hike the Letterkeen Loop?

The Letterkeen Loop can be hiked year-round, but the best time is typically during the drier months from late spring to early autumn (May to September). Be prepared for potentially wet and boggy conditions at any time of year, especially after rain. Always check the weather forecast before you go.

Do I need a permit or pay an entrance fee for the Letterkeen Loop or Wild Nephin National Park?

No, there are no permits required or entrance fees to hike the Letterkeen Loop or to access Wild Nephin National Park. It is freely accessible to the public.

What is the terrain like on the Letterkeen Loop and how difficult is it?

The terrain on the Letterkeen Loop is varied and can be challenging. You'll encounter riverbanks, footbridges, forestry roads, bogland, open mountain slopes, and narrow paths. There are steep ascents and descents, and some sections can be very wet and rough underfoot. It's generally considered a moderate to strenuous hike, requiring a good level of fitness.

How long does it typically take to complete the Letterkeen Loop?

The Letterkeen Loop is approximately 10 kilometers (6.2 miles) long. Most hikers complete it in about 3 hours 30 minutes to 4 hours, depending on pace and stops.

What are the notable landmarks or viewpoints along the route?

Along the Letterkeen Loop, you'll discover several interesting spots. Keep an eye out for the Maumaratta Stream Triangular Metal Bridge, the Mullach na Buaile Hut, and a Rocky Outcrop at the Summit offering expansive views. You'll also be treated to a stunning View Across Wild Nephin National Park and Rocky Steps with View of Wild Nephin National Park.

What gear should I bring for hiking the Letterkeen Loop?

Given the varied and often wet terrain, waterproof hiking boots are essential. Gaiters are also highly recommended, especially after rain. Layers of clothing, waterproof outerwear, navigation tools, sufficient water, and snacks are also advisable for this challenging route.

Does the Letterkeen Loop connect with other trails?

Yes, the Letterkeen Loop incorporates sections of other routes. You'll find it overlaps with parts of the historic Bangor Trail, as well as the Lough Aroher Loop and Botky Teep trails.

Are there any facilities or amenities available at the trailhead?

Yes, the Brogan Carroll Bothy car park, which serves as the trailhead, offers amenities such as picnic benches and an open bothy, providing a sheltered spot for a break.

Is the Letterkeen Loop suitable for beginners or families with young children?

Due to its strenuous sections, varied terrain, and potential for wet conditions, the Letterkeen Loop is generally not recommended for beginners or families with young children. It requires a good level of fitness and appropriate gear.

Where can I find updates or safety information for the trail?

As the trail is located within a dynamic natural environment, it's always a good idea to check for the latest updates. You can contact Wild Nephin National Park directly for current conditions, potential disruptions (like those from forest fires), or any safety advisories.

Nearby routes

Hard

4.9

1,816

Croagh Patrick Pilgrim Path

04:21h

7.35km

680m

Trail Reviews

Streetcleaner
June 2, 2024, Wild Nephin National Park - Letterkeen loop

Amazing well marked loop with fantastic scenery all the way. Expect everything, mixed terrain boggy and wet ground and fast changing weather.

We ran the loop in dry conditions and with the risk of forest fires, but there were still several muddy sections. This could be challenging in the rain. We also realized during the loop that it's better to run the other way round, as the trail markings would be more consistent that way.

Translated by Google
Otto
July 5, 2022, Letterkeen Loop

A very nice round! Surefootedness required. Very wet ground in places!

Translated by Google
Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy