Cwmcarn is a village situated in the Ebbw valley in south Wales, in the historic boundaries of Monmouthshire. It grew with 19th-century coal mining, but is now known for its extensive mature forestry and greenery, that attract thousands of visitors and mountain biking enthusiasts each year.

Twmbarlwm, also known as Twm Barlwm, Twyn Barlwm or locally known as "the Twmp", the Nipple or the Pimple because of the mound that lies at its summit, is a hill situated 2 km (1.2 mi) to the northeast of Risca in South Wales. It is often mistakenly referred to as a mountain but is actually a hill due to being under 600 m (2,000 ft). It is 419 m (1,375 ft) high and is a well-known landmark throughout the region. It commands extensive views across what is now the M4 corridor, over Newport and Cwmbran - with part of it coming into Cwmbran - and out over the Bristol Channel.