This picture was taken on a field trip to the South San Gabriel River at Hwy. 183 in Leander, TX on April 5th, 2000. It is the source for the embossed background for my homepage. Shown here are three prograding sequences of mud-supported bedding overlain by grain supported bedding representing three sedimentary cycles in the late Cretaceous (Bull Creek Member of the Walnut formation unconformably overlying the Glen Rose formation at the bottom).