-135- Section 4 contd. Thickness (feet) 3. Shale, blue-gray with some brown lenses, becomes sandy upwards in unit, very silty throughout . . . . . . . . . . . . . . . . . . 67 2. Sandstone, light yellow and brown weathering, very fine sand grains . . . . . . . . . . . . . . . . . 4 1. Conglomerate, large boulders up to 1 foot in dia- meter, the larger boulders are dark limestones, pebbles are mainly chert, base of unit not exposed . . . . . . . . . . . . . . . . . at least 30 Covered below. Section 5 Measured near the northeastern end of the ridge which extends northeastward from Dugout Mountain. Dips in the lower portion of the section are extremely variable, ranging from 15° to 30°. Top of measured sequence Thickness (feet) Lenoxhills Formation 5. Conglomerate, with pebbles and cobbles of lithologies representing most of the older rocks in the Marathon fold belt . . . . . . . . 150