Deweys - Hills in England, Wales and the Isle of Man at least 500m high with a drop of at least 30m on all sides. The list was published with no upper bound on height, but in practice the name is applied to hills below 610m (2000ft) high, as hills over 610m are usually called Hewitts.
More information: Wikipedia...
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Data courtesy of the Database of British and Irish Hills v13.1
You can use this list of Hills & Map as your personal Dewey Baggers' Tick-list to keep track of your hill climbing progress
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