08:13
58.1km
2,750m
Running
The Corris Round is a difficult 36.1-mile (58.1 km) jogging route in Snowdonia National Park with 9031 feet (2753 metres) of elevation gain.
Last updated: February 26, 2026
Tips
Includes off-grid segments
Navigation instructions may be limited.
After 694 m for 254 m
After 1.92 km for 245 m
After 2.93 km for 550 m
After 11.7 km for 805 m
After 17.8 km for 223 m
After 24.2 km for 759 m
After 29.8 km for 251 m
After 30.5 km for 371 m
After 36.7 km for 251 m
After 37.3 km for 1.78 km
After 46.4 km for 421 m
After 48.5 km for 3.19 km
After 54.1 km for 215 m
Waypoints
Start point
Parking
Get Directions
11.6 km
Highlight • Viewpoint
Tip by
32.5 km
Highlight • Summit
Tip by
57.6 km
Highlight • Historical Site
Tip by
58.1 km
End point
Parking
Way Types & Surfaces
Way Types
19.3 km
13.4 km
9.49 km
6.67 km
5.02 km
2.96 km
966 m
327 m
Surfaces
17.2 km
13.8 km
12.9 km
5.02 km
5.02 km
2.92 km
1.26 km
Sign up to see more specific route details
Sign up for free
Elevation
Highest point (860 m)
Lowest point (30 m)
Sign up to see more specific route details
Sign up for free
Weather
Powered by Foreca
Wednesday 1 July
18°C
10°C
-- %
Additional weather tips
Max wind speed: -- km/h
to get more detailed weather forecasts along your route
This route was planned by komoot.
The Corris Round traditionally starts and finishes at the Corris Institute in the village of Corris. Parking is generally available within the village, though it's always a good idea to arrive early, especially on busy days, to secure a spot.
This is considered a 'Hard run' and is best suited for experienced joggers and trail runners with a very good fitness level. The route's significant distance (around 58 km) and considerable elevation gain (over 2,700m) demand sure-footedness and sturdy shoes. Some sections may even require alpine experience due to the technical terrain.
The terrain is highly varied and demanding. You'll encounter a mix of hiking paths, tracks, and some paved sections. Expect extensive unpaved and natural surfaces, including gravel, steep grassy slopes, and rocky chutes. There are also challenging forest sections with potential route-finding difficulties and marshy trods, as well as pathless sections over tussocks.
The route offers magnificent views and passes several notable points. You'll experience panoramic mountain vistas, including the towering mass of Cadair Idris, and reach the Penygadair summit, Cadair Idris. Another highlight is the Tarren Hendre Summit. The trail also starts in the historic slate village of Corris and passes remnants of the area's industrial heritage.
While dogs are generally welcome on public footpaths in Snowdonia National Park, this particular route is very long and challenging. If you bring a dog, it must be kept under close control, especially around livestock, and on a lead in certain areas. Consider your dog's fitness and ability to handle the varied and technical terrain over such a long distance.
The best time to tackle The Corris Round is typically during the drier months, from late spring to early autumn (May to October). During these periods, the weather is generally more stable, and the ground conditions are less marshy. Winter conditions can make the route significantly more challenging and potentially hazardous due to ice, snow, and shorter daylight hours.
No, there are no specific permits or entrance fees required to jog The Corris Round itself. As it's located within Snowdonia National Park, general park regulations apply, but access to trails is free. However, if you use private parking facilities, there may be a charge.
Yes, sections of The Corris Round overlap with several official named trails. You'll find yourself on parts of the Cambrian Way, the Mynydd Moel-Tyrrau Mawr ridge walk, EuroVelo 2 - Capitals Route, Lôn Las Cymru, and the Pony Path, among others.
Route finding can be challenging in certain sections, particularly within the forests where the actual path may deviate from GPS tracks. It's essential to pay close attention to navigation and be prepared for pathless sections over tussocks. Carrying a reliable map, compass, and a fully charged GPS device with the route loaded is highly recommended.
Given the route's difficulty and length, you should pack sturdy trail running shoes with good grip, appropriate weather-resistant clothing (layers are key), sufficient water and high-energy food, a first-aid kit, and navigation tools (map, compass, GPS). A headlamp is advisable even for daytime runs, especially if you anticipate finishing near dusk. Due to the varied terrain and potential for exposure, waterproofs are essential.
Yes, the village of Corris, where the route starts and finishes, offers some facilities. You can find local cafes and pubs for refreshments before or after your run. There are also accommodation options available in Corris and the surrounding Dyfi Valley area, ranging from B&Bs to guesthouses.
Comments
Want to know more?
Sign up for a free komoot account to join the conversation.
Sign up for free