Divis (/ˈdɪvɪs/; from Irish Dubhais 'black ridge') is a hill and area of sprawling moorland north-west of Belfast in County Antrim, Northern Ireland. With a height of 1,568 ft (478 m), it is the highest of the Belfast Hills. It is joined with the neighbouring Black Mountain, and in the past they may have been seen as one. Divis transmitting station is on the summit. The mountain extends north to the Antrim Plateau and shares its geology; consisting of a basaltic cover underlain by limestone and lias clay.