Crag Hill is a mountain in the North Western part of the English Lake District. It was formerly known as Eel Crag; however, the Ordnance Survey now marks Eel Crag as referring to the northern crags of the fell. It is not to be confused with another Crag Hill lying on the border of North Yorkshire. It overlooks the valleys of Rannerdale on the west, and Coledale on the east. It is the second highest fell in the area of high ground between the passes of Whinlatter and Newlands, second to Grasmoor. It is 839 m (2,753 feet) high, and has a relative height of 117 m.
The North Western Fells occupy the area between the rivers Derwent and Cocker, a broadly oval swathe of hilly country, elongated on a north-south axis. Two roads cross from east to west, dividing the fells into three convenient groups. The central sector, rising between Whinlatter and Newlands passes, includes Crag Hill.
The highest ground in the North Western Fells is an east-west ridge in this central sector, beginning with Grasmoor above Crummock Water and then gradually descending eastwards over Crag Hill, Sail, Scar Crags and Causey Pike. Grasmoor has the greatest elevation, but Crag Hill stands at the hub of the range. In plan it appears as a cross with ridges running to the four points of the compass.