The Kilpatrick Hills are a range of hills in central Scotland, stretching from Dumbarton in the west to Strathblane in the east. Strathblane divides the Kilpatricks from the Campsie Fells to the east, while to the north is part of the Loch Lomond and the Trossachs National Park. To west and south the hills are fringed by the settlements of Balloch, Dumbarton, Milton, Bowling, Old Kilpatrick, Clydebank, Bearsden and Milngavie. The majority of the range is within West Dunbartonshire, although it extends into the East Dunbartonshire and Stirling areas.
The highest points in the range are Duncolm (1,314 feet (401 m)) and Fynloch (1,313 feet (400 m)). The Kilpatricks offer a number of viewpoints and places of interest: among the best known are Doughnot Hill and The Whangie. The area features several reservoirs.
The hills are of volcanic origin, modified by subsequent glaciation.
The Kilpatrick Hills are a part of the Clyde Plateau Lavas. These are about 340 million years old. Basaltic types of rocks (lavas, tuffs and agglomerates) predominate here. These are produced by denudation of the successive flows.
The Whangie in the north of the Kilpatricks is of particular interest to geologists and casual walkers alike. It consists of a slice of the hillside that has been separated from the main slope. This has created a narrow chasm up to 10 metres (33 ft) high and about 100 metres (330 ft) in length through which visitors can walk. It has commonly been explained as result of glacial plucking, but more recent research indicates that a translational landslide was the cause. During an ice age, a glacier slowly undermined the crag, opening up cracks in the rock and causing this chasm to form.