Glandwr sits south of Aberbeeg in Blaenau Gwent, South Wales. Just 1km north of Glandwr, the Ebbw Fach and Ebbw Fawr rivers meet and form the larger Ebbw river. This then flows onwards through Abercarn and Risca, before joining with the river Usk and meeting the sea at the Severn estuary.
Pen y Fan Pond Country Park is located half a kilometre to the west of Glandwr. The park is particularly popular in the summer, with its picnic areas, healthy walking route and the interesting alien invasion trail.