When the land in the Odenwald was uplifted again about 180 million years ago, more than 100 m of the sedimentary layering, in parts, was eroded away down to the bedrock, as can still be seen in the western Odenwald. The bedrock here is composed of a number of different rocks, among them gneiss, granite, diorite, gabbro in the Frankenstein pluton, and so on. In the eastern Odenwald, the red sandstone is all that is left of the sedimentary mixture. Farther east in the Bauland, the muschelkalk deposits still overlie the Early Triassic layers. Furthermore, in the south near Heidelberg, there is still Zechstein under the Early Triassic deposits.