A broad, rolling hill, it is visible from the M74 motorway in the west, parts of Dumfries and ranges to the east. Hart Fell is gently sloping on three sides of the hill, however the east ridge is steep and craggy and features a deep corrie known as Blackhope. The normal route is from the southern ridge , passing over Swatte Fell and can be extended to include a full loop of Blackhope, finishing on Saddle Yoke, known as the Hart Fell Horseshoe.