The Midland Valley of Scotland is the name given to the relatively low lying central part of Scotland lying between the Grampian Highlands and the Southern uplands. It is defined geologically to the north by the Highland Boundary Fault, which extends from Stonehaven in the north-east to the Firth of Clyde at Helensburgh, and its limit in the south is the Southern Upland Fault which lies parallel to the Highland Boundary Fault and extends from Dunbar to Glen App. This book gives an overview of the geology of the area. A fold-out map of the solid geology (scale 1:625,000) is tucked in the back of the book.