Mynydd Epynt

Mynydd Epynt
View east from Blaen Bwch Farm
Mynydd Epynt Location within Powys
OS grid reference	SN 961464
Principal area	Powys
Preserved county	Powys
Country	Wales
Sovereign state	United Kingdom
Police	Dyfed-Powys
Fire	Mid and West Wales
Ambulance	Welsh
List of places UK Wales Powys 52°06′22″N 3°31′06″W / 52.106138883092°N 3.5184658886388°W / 52.106138883092; -3.5184658886388

Mynydd Epynt (Welsh: [ˈmənɨð ˈɛpɨnt]) is an upland region of Mid Wales, within the county of Powys. It is bounded on the south by the upper stretch of the Usk Valley, on the north by the Irfon Valley, and on the east by the Wye Valley. Its western boundary is less distinct but lies east of the A483 Llandovery to Llanwrtyd Wells road.

The area is an extensive plateau lying between 400 and 450m, drained by several southward-flowing rivers that empty into the River Usk; these include (from west to east) the Cilieni, the Nant Bran, the Afon Ysgir (with its two headwaters, the Ysgir Fechan and Ysgir Fawr) and the Afon Honddu. The Duhonw drains north-eastward into the River Wye.^[1] The highest point is a marilyn (having topographic prominence of at least 150m) of 478m.

Since 1940, Mynydd Epynt has formed part of the Sennybridge Training Area, the largest military training zone in Wales.