Page:Field Notes of Junius Henderson, Notebook 2.pdf/21



Wednesday

Dodds, Crawford, Jackson and I started down in the morning. Found the crinoidal limestone just below N well up on talus slope of Lyons escarpment  in form of boulders and in one ledge in place, where Dodds and Jackson obtained one. It has more of a reddish ting than further north. Just below junction  of  is a strong ledge of limestone  resting on typical Fountain conglomerate, with about 20 ft. of Fountain above the limestone. Above the 2o ft. zone of Fountain is the thinner bedded, finer grained Lyons sandstone, limestones etc. The thickness of the Fountain is difficult to ascertain, but we found it extending to the bed of the creek with but a narrow zone of debris intervening between it and the granite. There is not less than 200 ft of Lyons