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A HISTORY OF DERBYSHIRE acclivity upon which this lofty camp or enclosure was placed gave to it a strong natural defence all round, save on the north, where it is connected with the ridge of Lose Hill. The defenders increased this natural defence by encompassing the summit within a powerful double rampart, which is still fairly perfect. A long-established local name for Mam Tor is the Shivering Mountain, so called from the shale of which it is com- ^IS $w^
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-i> ^ MAM^ ^^X OR ^* ^^ ^ ^^0 -^ ^L 5: SCALtorrcer IOO 1OO 30O A. Landslips. B- Enf ranee,? modet-n. C. Infra ace nay. D. Watercourse.
