Also known as Whitbarrow Scar (though properly that term applies to the cliffs lining its western edge), the hill lies about 9 kilometres (5.6 mi) southwest of Kendal, just north of the A590 road, close to the village of Witherslack.
The hill is prominent from the A590 road with its steep limestone cliffs, laid down in the Carboniferous period some 350 million years ago.
Whitbarrow NNR is owned and managed by the Forestry Commission, Lake District National Park Authority and the Cumbria Wildlife Trust.
Much of Whitbarrow is covered in woodland, initially naturally and from 1919 following planting; the Forestry Commission now holds leases on parts of the hill.
A 6.5-mile (10.5 km) anticlockwise walk to Whitbarrow's summit, Lord's Seat, from Witherslack, returning along the valley to the west, forms a chapter in The Outlying Fells of Lakeland by Alfred Wainwright.