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Aug. 12. Section at Southern end of Twin Buttes. 1. 20 ft. red-horn con- glomerate. 2. 200 ft. pink-grey clays 3. 6 ft. limestone, buff. 4. 250 ft. pink-grey clays with very soft yellowish green sandstone at base. 5. 10 ft. nodular sandstone + clay - light buff. 6. 75 ft. gray + greenish clay with dark blue-green sandstone (10 ft.) in places and various nodular layers of lighter sandstone.