Ellesmere Gr. Part of section 63 K 73. At base of partial section shown here is shale with abundant fusulinids, corals, brachipods, bryozoans. Above th shale is hard ledge-forming calcerous siltstone causing waterfall. The shale hard siltstone contact is at 100 foot level of measured field section. Above the hard siltstone if another softer shale and above this greyish-white gypsum. Dennis Maier in picture.