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SaveCwmcarn Forest is the destination for all you downhill adrenaline junkies. The Y Mynydd course consists of one man-made downhill Trail (with a choice of lines on the top and middle sections), simply named red run and black run. The course demands a high level of skill (and guts). These are extreme downhill trails and are suitable for experienced riders only.
You’ll be challenged with loads of berms, a few switch backs, doubles, a tunnel, rock steps, the bridge, hip jump and the quarry gap. The jumps are there if you want them,
but can be ridden around if not. An uplift pass is available at www.cwmdown.co.uk.
Cwmcarn Forest is also home of the Twrch Trail, this is a superb 15.5km trail of the very highest quality that is not for the faint hearted. Virtually the entire route is on purpose built single-track through a mixture of broadleaf and conifer woodlands and open ridge tops.
The riding varies from open and flowing hard pack to tight technical & Rooty and is rideable in all weather, with a steep climb at the start followed by a rollercoaster decline with dramatic views of the Bristol channel and surrounding hills.
The Twrch Trail and uplift service start from the car park.
You’ll be challenged with loads of berms, a few switch backs, doubles, a tunnel, rock steps, the bridge, hip jump and the quarry gap. The jumps are there if you want them,
but can be ridden around if not. An uplift pass is available at www.cwmdown.co.uk.
Cwmcarn Forest is also home of the Twrch Trail, this is a superb 15.5km trail of the very highest quality that is not for the faint hearted. Virtually the entire route is on purpose built single-track through a mixture of broadleaf and conifer woodlands and open ridge tops.
The riding varies from open and flowing hard pack to tight technical & Rooty and is rideable in all weather, with a steep climb at the start followed by a rollercoaster decline with dramatic views of the Bristol channel and surrounding hills.
The Twrch Trail and uplift service start from the car park.
Primary Trail Type: All-Mountain & Downhill
Shuttleable: YES
Land Status: Community Forest

Access Info:
Signposted Forest Drive from M4 junction 28.
Links
This region uses the Uk/Euro style trail grading system.
Activities Click to view
- Mountain Bike
81 trails
- E-Bike
47 trails
- Hike
24 trails
- Trail Running
24 trails
Region Details
- 21
- 1
- 1
- 22
- 19
Region Status
Open as of Jun 21, 2025Stats
- Avg Trail Rating
- Trails (view details)
- 67
- Trails Mountain Bike
- 81
- Trails E-Bike
- 47
- Trails Hike
- 24
- Trails Trail Running
- 24
- Total Distance
- 54 miles
- Total Descent Distance
- 27 miles
- Total Descent
- 13,178 ft
- Total Vertical
- 1,101 ft
- Highest Trailhead
- 1,365 ft
- Reports
- 885
- Photos
- 235
- Ridden Counter
- 25,199
Articles
Video: Rob Williams Shreds the Forgotten Gem of CwmCarn
Aug 27, 2019 from pinkbike.com
A top to bottom run of the Pedalhounds descent.
Video: Rob Williams Returns to Cwmcarn to Shred his Childhood Trails
Jul 2, 2019 from pinkbike.com
Growing up around the village of Cwmcarn, Rob's developed his skill and style cutting his teeth on this trail. Admittedly it looks a little...
Popular Cwmcarn Forest Drive Mountain Biking Trails
Photos of Cwmcarn Forest Drive Mountain Bike
trail: Busy Lizzie Lower
0 |
Jun 21, 2025 @ 10:01am
Jun 21, 2025
trail: Cwmcarn Forest Drive
1 |
Apr 12, 2025 @ 7:18pm
Apr 12, 2025
trail: Cwmcarn Forest Drive
0 |
Apr 12, 2025 @ 7:18pm
Apr 12, 2025
trail: Cwmcarn Forest Drive
2 |
Apr 12, 2025 @ 7:18pm
Apr 12, 2025
trail: Cwmcarn Forest Drive
1 |
Apr 12, 2025 @ 7:18pm
Apr 12, 2025
trail: Cwmcarn Forest Drive
5 |
Apr 12, 2025 @ 7:18pm
Apr 12, 2025
trail: Twrch Trail
347 |
Aug 10, 2012 @ 5:02am
Aug 10, 2012
trail: Twrch Trail
385 |
Jan 15, 2012 @ 12:11pm
Jan 15, 2012Videos of Cwmcarn Forest Drive Mountain Bike

trail: Cwmcarn Forest Drive
0:54 |
40 |
Jun 9, 2021

trail: Cwmcarn Forest Drive
0:25 |
76 |
Dec 1, 2020

trail: Cwmcarn Forest Drive
0:43 |
27 |
Dec 1, 2020

trail: Cwmcarn Forest Drive
0:56 |
101 |
Nov 16, 2020

trail: Cwmcarn Forest Drive
3:31 |
170 |
Jan 28, 2020

trail: Y Mynydd Black
0:03 |
87 |
Oct 2, 2017

trail: Pedalhounds
4:19 |
1097 |
Mar 23, 2017

trail: Y Mynydd Black
3:45 |
112 |
Jan 10, 2017
Recent Trail Reports
status | trail | date | condition | info | user |
---|---|---|---|---|---|
Busy Lizzie Lower | Dec 21, 2024 @ 9:41am Dec 21, 2024 | Wet | RadBikeBro NCTC | ||
Busy Lizzie Middle | Dec 21, 2024 @ 9:41am Dec 21, 2024 | Wet | RadBikeBro NCTC | ||
Busy Lizzie | Dec 21, 2024 @ 9:41am Dec 21, 2024 | Wet | RadBikeBro NCTC | ||
Y Mynydd DH Red | Dec 21, 2024 @ 9:41am Dec 21, 2024 | Wet | RadBikeBro NCTC | ||
Wacko Jacko | Dec 21, 2024 @ 9:41am Dec 21, 2024 | Wet | RadBikeBro NCTC | ||
Twrch Trail | Nov 27, 2024 @ 5:50pm Nov 27, 2024 | Variable | RadBikeBro NCTC | ||
Twrch Trail - Airstream | Nov 27, 2024 @ 5:50pm Nov 27, 2024 | Variable | RadBikeBro NCTC | ||
Twrch Trail | Nov 27, 2024 @ 5:50pm Nov 27, 2024 | Variable | RadBikeBro NCTC | ||
Twrch Trail | Nov 27, 2024 @ 5:50pm Nov 27, 2024 | Variable | RadBikeBro NCTC | ||
Twrch & Cafall Outward | Nov 27, 2024 @ 5:50pm Nov 27, 2024 | Variable | RadBikeBro NCTC |
Activity Feed
username | action | type | title | date |
---|---|---|---|---|
cmani05 | ridden | trail | activity #74908364 | Jun 30, 2025 @ 12:51pm Jun 30, 2025 |
Gosford | ridden | trail | activity #74671385 | Jun 27, 2025 @ 10:31am Jun 27, 2025 |
dave12353 | wishlist | trail | activity #74556429 | Jun 25, 2025 @ 1:37pm Jun 25, 2025 |
5sHHoQ | ridden | trail | activity #74326289 and 1 more | Jun 22, 2025 @ 6:01am Jun 22, 2025 |
Dhdaniel93 | add | photo | activity #74259569 | Jun 21, 2025 @ 10:01am Jun 21, 2025 |
Recent Comments
username | type | title | comment | date |
---|---|---|---|---|
trail | this small forest is full with some real tech... | May 30, 2025 @ 6:16am May 30, 2025 | ||
trail | it's not really a forest road. lower half is... | May 30, 2025 @ 6:13am May 30, 2025 | ||
trail | Overgrown, almost unrideable | Jul 8, 2023 @ 9:01am Jul 8, 2023 | ||
trail | Wonderfully brutal. | Aug 27, 2022 @ 6:07am Aug 27, 2022 | ||
trail | Not sure why this listed as no e-biking. There... | May 18, 2021 @ 5:57am May 18, 2021 |
Nearby Areas
name | distance | ||||
---|---|---|---|---|---|
Wyllie Bike Park | 5 | 8 | 1 | 3 km | |
Tirpentwys Trails | 4.9 km | ||||
Rudry | 5.3 km | ||||
Caerphilly Woods | 2 | 7 | 6.5 km | ||
Mountain View Bike Park | 1 | 7.7 km |
Local Badges
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Completionist0 awarded
Activity Type Stats
activitytype | trails | distance | descent | descent distance | total vertical | rating | global rank | state rank | photos | reports | routes | ridelogs |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mountain Bike | 81 | 53 miles | 12,851 ft | 26 miles | 1,089 ft | #289 | #12 | 235 | 885 | 3,135 | ||
E-Bike | 47 | 37 miles | 7,126 ft | 16 miles | 1,089 ft | #386 | #30 | 858 | 2,401 | |||
Hike | 24 | 30 miles | 3,432 ft | 12 miles | 1,102 ft | #6,706 | #231 | 844 | 47 | |||
Trail Running | 24 | 30 miles | 3,432 ft | 12 miles | 1,102 ft | #6,694 | #228 | 844 | 74 |
- By cianhopkins & contributors
- Admins: NRW-S
- #4587 - 33,165 views
- cwmcarn forest drive activity log | embed map of Cwmcarn Forest Drive mountain bike trails | cwmcarn forest drive mountain biking points of interest
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