Dunmail Raise

From Wikipedia, the free encyclopedia

Dunmail Raise, high point (238m) on the A591 that bisects the English Lake District National Park north to south between Keswick and Ambleside. Dunmail Raise rises between Grasmere and Thirlmere and is marked by a large cairn of stones reputed to be the burial mound of Dunmail, last king of Cumbria and after whom the pass is named. It has also been suggested that the cairn is a boundary marker, although firm evidence for this appears lacking.

To the east of Dunmail Raise is the ridge dominated by Helvellyn and Fairfield, and to the west, the High Raise massif.

Sited on Dunmail Raise is a water treatment plant owned and run by United Utilities, which uses screens and microstrainers to filter the water, pH-corrects the water using sodium hydroxide, and finally chlorinates the water.