The relief of the region is contain various areas of joint valley terrain (), this means that the landscape is dissected by valleys following joints, faults and other weakness zones in the Precambrian shield rocks. NNW-SSE trending eskers, that are usually forested, crosses the lowlands. In Västergötland the lowland contain a series of hills made up Silurian-aged sedimentary rock, these are; Kinnekulle, Halleberg, Hunneberg and Billingen.