Thursday July 27. '99 cont. The section first described is a little east of the centre of a long low flat syncline. In my sight distance below Indian Creek strata, the rocks dip westward, at first rapidly and then more slowly. Then for any distance they are nearly flat. A short distance above Longbottom Island the same rocks dip quite strongly southward a little east of south. At the lower end of Longbottom Island and the rocks dip northward a northeast. Half way between Longbottom Island and Little Indian Creek the rocks dip northeast again, the dip in the opposite direction between those two locations was not very marked. Near the northeast end of the high cliffs extending on the west bank of the river from Longbottom Island, northwards, a path leads up to a house and thence around leads back of the highest ridge up the river, to a school house which may be seen on top of the high ridge, in coming down the river. Half way between the house first mentioned and the school house, is a log cabin opposite which is a little gully in which the following section was found; Base Black Shale 656. See 2nd page beyond for continuation of upper part of this section. Black shale, 2 1/2 ft. Rather coarse dark shales D 3 ft. Greenish layers in black shale. Black Shale 4 inches. Residual phosphatic layer .4 in. 12-ft, 9 in. Thin bedded Madison 11 ft. heavy Madison beds, 83 ft. not observed. D These shales look a great deal like some of the dark Wavely shale. They are irregularly fractured, and do not break up into the thin fissile shales characteristic of the residual Black Shale.