Longridge Fell is formed in the Pendle Grit. Strata dip locally to the south and south-east presenting a prominent northwest-facing scarp. Pendle Hill is similarly formed from these erosion-resistant sandstones. The southern part of the Forest of Bowland, including the prominent Parlick together with the isolated Beacon Fell are also formed from the Pendle Grit. The Ward's Stone Sandstone Formation forms the western parts of these fells whilst to the north-east it is the Dure Clough Sandstone which forms the plateau surface.