Here is a folktale from the north of the Peak District.
Beside Dovestones Reservoir in the Upper Tame Valley, not far from Mossley, stand two hills: Alphin Pike and Alderman’s Hill. These were once the homes of two giants, Alphin and Alder, who were friends until they both fell in love with Rimmon, a water nymph, who lived in the sparkling water of Chew Brook in the valley below. Rimmon chose to return Alphin’s affection; Alder was enraged. He flung boulders at Alphin, who responded in kind, and the two giants fought until Alphin was struck by a large rock and killed. Grief stricken, Rimmon cast herself from an outcrop and died beside her lover.
(The pointer marks Alphin Pike. Alderman’s Hill is north of the reservoir.)