The Brechfa Forest is an area of forest in Carmarthenshire, south Wales. Brechfa Forest is the 'modern' name for part of the ancient Glyn Cothi Forest. From before records began in the 6th century the communities in the 15 villages which encircle Glyn Cothi Forest were managing it to provide employment, building materials, products, and grazing. At various times the forest has been the refuge of Welsh Princes fighting the Norman Invasion, a Royal Hunting Forest, and for two centuries was the 'Texas' of Wales, producing large quantities of oil for lamps.