The Black Hill (also known as Crib y Garth) is a hill (elevation 2100 feet or 640m) in the Black Mountains in Herefordshire, England at grid reference SO275348. It rises just west of the village of Craswall, near the border with Wales. The southern part of the ridge leading to the summit is a rocky knife-edge giving excellent views to either side. The northern part crosses a peat bog on gently sloping land at the edge of the east facing escarpment. The lower part is very similar to the main ridge of the Skirrid mountain near Abergavenny, owing to their similar underlying geology. The Black Hill is known locally as the 'Cat's Back,' as viewed from Herefordshire it looks like a crouching cat about to pounce.