Mill Hill (Derbyshire) Mill Hill (Derbyshire) Mill Hill is an open, flat-topped hill, high, in the Peak District in the county of Derbyshire in England. Mill Hill lies about southeast of the town of Glossop in the hills of Derbyshire's Peak District and a similar distance northwest of the Peak's highest point at Kinder Scout. Mill Hill is a bare, domed summit covered by peat moorland that lies on the route of the Pennine Way about northwest of the highest point in the Peak District, Kinder Scout. There is a cairn and marker pole at the summit. The summit area has been eroded
Moorland to heaths but are differentiated by having a covering of peat. On western moors the peat layer may be several metres thick. Scottish "muirs" are generally heather moors, but also have extensive covering of grass, cotton-grass, mosses, bracken and under-shrubs such as crowberry, with the wetter moorland having sphagnum moss merging into bog-land. There is uncertainty about how many moors were created by human activity. Oliver Rackham writes that pollen analysis shows that some moorland, such as in the islands and extreme north of Scotland, are clearly natural, never having had trees, whereas much of the Pennine moorland area was