Saturday May 10th 2025
Llanthony Priory, Monmouthshire.
Big Black Mountains Challenge 2025
We’re back with the ever-popular BBMC and its choice of three routes (20km, 31km, and 49km) in the heart of the glorious Black Mountains for walkers and runners of all ages and abilities! Come rain or shine, it’s always a fun day and places go fast.
Registration opens 1st February 2025 and places go fast, last year we sold out in 12hrs! If you have any questions drop us an E-Mail : bbmc@longtownmrt.org.uk or WhatsApp : 07356 073390
If you are looking for Early Entry and are interested in joining our 40Km Ruby Challenge follow the link below!
Entries for BBMC 2025 open 1st February 2025
BBMC Route Maps and Information
All route date is approximate. BBMC is a self-guided challenge between checkpoints. The routes below are provided for information. All
routes are clockwise in direction. Please note that GPS devices used to record total distance and/or height gain may show different data
BBMC Routes
| Route A | Route B | Route C | |
| Total Distance | 49Km | 31Km | 20Km |
| Total Ascent | 1,872M | 900M | 825M |
| Total Descent | 1,872M | 900M | 825M |
| Estimated Time to Complete | 14Hrs 50Mins | 9Hrs | 6Hrs 10 Mins |
| % of Ascent | 42% | 37% | 37% |
| % of DeAscent | 47% | 47% | 50% |
| % of Level | 11% | 16% | 13% |
| NOTE : ALL DATA IS APPROXIMATE. GPS DEVICES USED TO RECORD TOTAL DISTANCE / HEIGHT GAIN MAY SHOW DIFFERENT DATA. | |||
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