Penlan Voss
167m
Penlan Voss is a HuMP, 167m high. The HuMPs are hills in Britain and Ireland with at least 100 metres of prominence, whatever their height.
Carmarthen is the nearest station, 1.5 mi (about 2 mi on foot), so the summit is within walking distance of the train. From Carmarthen it's about 1 hour to the summit, 1 in 16 on average. Ferryside is next, 7.9 mi (about 10.5 to 11.5 mi on foot), and 3 stations are within 10 miles in all.
Stations within 10 miles of Penlan Voss, nearest first. Walking distances are estimates from the straight-line distance and the type of ground, not a measured route. Check a map before you set off. Times use Naismith's rule and don't include stops.