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Trawsfynydd

Top 9 Mountain Passes around Trawsfynydd

Best mountain passes around Trawsfynydd are located within Snowdonia National Park, offering diverse routes for outdoor activities. This region features a rugged landscape with prominent peaks and hidden valleys. It is known for its challenging terrain and scenic viewpoints, providing opportunities for exploration. The area offers a variety of mountain passes to see and explore, catering to different levels of difficulty.

Best mountain passes around Trawsfynydd

  • The most popular mountain passes is Bwlch y Rhiwgyr, a mountain pass that…

Last updated: July 1, 2026

Moelwyn Bach

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Moelwyn Bach is smaller and rockier than its sibling Moelwyn Mawr. Both can be linked together via the Craigysgafn ridge and Bwlch Stwlan. The views from the top are superb, …

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Bwlch Drws Ardudwy

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The pass between the breathlessly rugged Rhinogs Fach and Fawr is notorious. Many who have explored this way have been taken aback by a rough hewn landscape of concealed boulders …

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Bwlch y Rhiwgyr

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This saddle lies just south west of Craig y Grut and offers fantastic views of both Snowdon and Cadair Idris. It's a steep but enjoyable hike from Barmouth or Tal-y-Bont …

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Ascent to Crimea Pass from Dolwyddelan

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The ascent to Crimea Pass from Dolwyddelan is along the A470, which can be a busy route. It's just over 3km long with an elevation gain of 205m, giving an average gradient of 6.6%.

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Bwlch Llyn Bach Ascent from Dolgellau

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The A487 can be a busy route in peak tourist season. The climb to Bwlch Llyn Bach from Dolgellau is 7km long with an ascent of 274m and an average gradient of 3.9%.

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Alex Foxfield

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Clive G
September 27, 2025, Bwlch Drws Ardudwy

This the deep narrow pass between Rhinog Fach and Rhinog Fawr. This photo shows where the path down from Rhinog Fawr meets the path that cuts through the pass, and also the steep path up Rhinog Fach. Also note how rough it is.

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The ascent to Crimea Pass from Dolwyddelan is along the A470, which can be a busy route. It's just over 3km long with an elevation gain of 205m, giving an average gradient of 6.6%.

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The A487 can be a busy route in peak tourist season. The climb to Bwlch Llyn Bach from Dolgellau is 7km long with an ascent of 274m and an average gradient of 3.9%.

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William Cook
October 6, 2023, Moelwyn Bach

A large and remote mountain in the Moelwynion range, and subsidiary summit to the larger and nearby Moelwyn Mawr. The summit is best accessed via the rocky Craigysgafn ridge line. As with many of the mountains in the Moelwynion range, it's pretty unlikely you'll bump into the crowds as found in certain other regions of the National Park. It's a perfect place to get a true wild mountain experience, and avoid queues for summit cairns.

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Ronnie
March 22, 2023, Moelwyn Bach

Moelwyn Bach 710m P124 (2329ft) The Mountains of England & Wales Definitive List

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Alex Foxfield
February 7, 2023, Moelwyn Bach

Moelwyn Bach is smaller and rockier than its sibling Moelwyn Mawr. Both can be linked together via the Craigysgafn ridge and Bwlch Stwlan. The views from the top are superb, particularly west towards the Lleyn Peninsula. From the summit, you can descend the broad west ridge to Croesor or takes the longer descent to Blaenau Ffestiniog.

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The pass between the breathlessly rugged Rhinogs Fach and Fawr is notorious. Many who have explored this way have been taken aback by a rough hewn landscape of concealed boulders and heather that doesn't give up its secrets lightly. From the bwlch are superb views across to Lake Trawsfynydd and the Arenigs. Both Rhinog Fach and Rhinog Fawr can be ascended from here.

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Kit P
April 6, 2022, Bwlch y Rhiwgyr

This saddle lies just south west of Craig y Grut and offers fantastic views of both Snowdon and Cadair Idris. It's a steep but enjoyable hike from Barmouth or Tal-y-Bont and several trails lead in different directions from the pass. There's a cairn where the paths converge.

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Frequently Asked Questions

What are some of the most notable mountain passes around Trawsfynydd?

The region around Trawsfynydd, within Snowdonia National Park, features several prominent mountain passes. Among them are Moelwyn Bach, known for its superb views towards the Lleyn Peninsula, and Bwlch Drws Ardudwy, situated between the rugged Rhinog Fach and Rhinog Fawr mountains, offering views across to Lake Trawsfynydd and the Arenigs.

What kind of terrain can I expect on the mountain passes near Trawsfynydd?

The terrain varies, but generally, you can expect rugged and challenging landscapes. For instance, Moelwyn Bach is described as smaller and rockier, while Bwlch Drws Ardudwy features a rough, hewn landscape with concealed boulders and heather, making for a wild and rugged experience.

Are there challenging hiking routes available on these mountain passes?

Yes, many of the mountain passes offer challenging routes. For example, the area around Bwlch Drws Ardudwy allows for ascents of both Rhinog Fach and Rhinog Fawr. The tips for Moelwyn Bach mention linking it with Moelwyn Mawr via the rocky Craigysgafn ridge, providing a true wild mountain experience.

What natural features and viewpoints can be seen from the mountain passes?

From Moelwyn Bach, you can enjoy superb views, particularly west towards the Lleyn Peninsula, and see Snowdon, Yr Aran, Y Lliwedd, and 15 lakes. Bwlch Drws Ardudwy offers views across to Lake Trawsfynydd and the Arenigs. Bwlch y Rhiwgyr provides fantastic views of both Snowdon and Cadair Idris.

Are there any historical sites or unique man-made features on the passes?

Yes, the Rhosydd Quarry Pass takes you through the remains of an abandoned mining area. Here, you can see huge spoil heaps, derelict buildings, and even some cavern openings, offering a glimpse into the region's industrial past.

What outdoor activities can I do near these mountain passes?

Beyond hiking and climbing the passes themselves, the Trawsfynydd area is excellent for various outdoor activities. You can explore MTB Trails, enjoy Gravel Biking, or embark on Road Cycling Routes. The region is also popular with ramblers, anglers, and nature lovers.

What do visitors enjoy most about the mountain passes around Trawsfynydd?

Visitors frequently highlight the superb views, the wild and rugged mountain experience, and the sense of solitude. Many appreciate the challenging routes that allow for true immersion in nature, away from the crowds found in other parts of Snowdonia National Park.

Is there an easy way to navigate some of the more rugged passes?

While many passes are rugged, some offer clearer paths. For example, at Bwlch Drws Ardudwy, you can stick to well-known paths like the Roman Steps, a medieval packhorse route, for easier navigation, or venture off-track for a more challenging experience.

Are there any passes that are particularly good for cycling?

Yes, the Ascent to Crimea Pass from Dolwyddelan is a notable cycle way. It's a climb along the A470, just over 3km long with an elevation gain of 205m, offering an average gradient of 6.6%.

What is the best time to visit the mountain passes around Trawsfynydd?

The region is ideal for outdoor enthusiasts, particularly ramblers, mountain bikers, anglers, and nature lovers. While specific seasonal advice isn't provided, generally, late spring to early autumn offers the most favorable weather conditions for hiking and cycling in Snowdonia National Park.

Where can I find more information about the Trawsfynydd area?

For additional information about Trawsfynydd and the surrounding region, you can visit the local tourism website: snowdoniatourism.co.uk.

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See even more epic mountain passes by checking out these guides around Trawsfynydd:

SnowdoniaBeddgelertLlanberisLlanllechidBetws GarmonLlandygaiLlanfrothenFfestiniogLlanddeiniolenMawddwyLlangywerLlandderfelDolgellauLlanelltydLlanuwchllynBrithdir And LlanfachrethWaunfawrLlanllyfniDolbenmaenArthogLlanfihangel-Y-PennantLlanycilCorrisGanllwydMaentwrogAberTalsarnauBarmouthDyffryn ArdudwyLlanwndaLlanrugLlandwrogBalaBethesda

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