page_title: Castle Crag
section_title: Geology, quarrying and Millican Dalton
hierarchical_section_title: Castle Crag / Geology, quarrying and Millican Dalton
caption_attribution_description: English: Falcon Crag, 2 miles south of Keswick, Cumbria, photographed from a mile to the north-north-west. Calfclose Bay in the middle distance.
context_page_description: Castle Crag is a hill in the North Western Fells of the English Lake District. It is the smallest hill included in Alfred Wainwright's influential Pictorial Guide to the Lakeland Fells, the only Wainwright below 1,000 feet.
  Wainwright accorded Castle Crag the status of a separate fell because it "is so magnificently independent, so ruggedly individual, so aggressively unashamed of its lack of inches, that less than justice would be done by relegating it to a paragraph in the High Spy chapter." Subsequent guidebooks have not always agreed: Castle Crag is one of only two Wainwrights not included in Bill Birkett's Complete Lakeland Fells.
context_section_description: The Derwentwater fault runs along the valley of Broadslack Gill, the higher ground to the north west being mainly composed of the Birker Fell Formation. These are plagioclase-phyric andesite lavas and subordinate sills. By contrast Castle Crag shows outcropping of the Eagle Crag Member, a mixture of siltstone, sandstone, conglomerate and tuff with frequent andesite sills.
  The slopes of Castle Crag are extensively quarried with pits and levels on the northern and south eastern flanks. The summit has also been extensively worked. The High Hows Quarry later achieved fame as the home of Millican Dalton, the eccentric and self-styled "Professor of Adventure". The caves here formed his summer home from the 1920s until shortly before his death in 1947.
caption: A view of Falcon Crag, with the eastern shore of Calfclose Bay, Derwent Water at its foot.
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