The Midvale Ridge Natural Area
The Midvale Ridge Natural Area is a ridge of Corallian limestones, marls and
sand which weather to form a wide variety of soils supporting rare “Breckland”
type heath and more acid grasslands. Near Cothill streams have cut down to the
underlying clay resulting in waterlogged conditions and nationally important
fens. The variety of soils, topography and drainage give rise to some of Oxfordshire’s
most important wildlife sites including ancient woodland at Wytham and Bagley.