Cwrt-y-Gollen ("Hazel Court") is a British Army training base, 2 miles (3 km) south-east of Crickhowell and just north of the A40 road and the River Usk, in southeastern Powys, Wales.

Cwrt-y-Gollen became the regional centre for infantry training as the Welsh Brigade Depot in 1963.

[2] Cwrt-y-Gollen training camp is currently used by several services of the British Armed Forces.

Most notably by the British Army as a reserve center for B Detachment (North), 203 (Welsh) Multi-Role Medical Regiment.

[3] It is also the headquarters for the Gwent and Powys Army Cadet Force (ACF).