- START GR793485 Car Park by Llyn Brianne Dam
- Cycle across the dam then follow the main forest track round the lake for 3km to (795493). Ignore right fork and stay on main track as it swings round through forest emerging from the trees at (790512). Descend to Soar y Mynydd (784533)
- At the Chapel turn left onto a clear track and climb up onto open moor. Begin to descend quite steeply. At (757534) look for a faint track to the left. This is easy to miss and is just before the last steepest part of the track.
- Follow this single track through grass and bracken as it undulates alongside the Afon Doethie valley for nearly 6km until it eventually joins a farm track at Troed-
rhiw- ruddwen. (768480) - Follow the track to the farm, through a gate and across the farmyard onto a track heading NE.
- Climb steeply up for just over 1km (Phew!) before descending to the edge of the lake, and the track you started on.
- Turn right to return to the dam and the car park.
OS Landranger Map 147 Elan Valley & Builth Wells
Mixed forest track and single-
Llyn Brianne & Afon Doethie-
The site for off-
Cyclopaths
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