The main spine of the Central Fells runs south from Bleaberry Fell to High Raise, before turning sharply east en route for Blea Rigg and Loughrigg Fell. A secondary ridge projects southward from High Raise, terminating in the Langdale Pikes. These are a high rocky parapet looking down upon the valley of Great Langdale, fringing an area of moorland behind. This upland plateau has its highpoint in Thunacar Knott.
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