Chief are our the closed Midway Limestone, that occurs about so far above the base. Here is located a Humphrey well. The Midway limestone begins as a greenish sandstone with test fossils and it passes upward into a white limestone that is much altered fairly dramatically. It's reflate with good ammonite fossils. The fauuna is largely gastropods, mostly Turri- tellas. See the lot of forms. Then drive on to see the fore dome of College Ground where there is another Humphrey well. This dome shows the fat of ore, and one can trace the overused dip on over side very well. About 3/4 miles away this dome stands out fine. Further northeast at Elmer Staben another dome, and Humphreys well.