-160- Section 11 contd. Gaptank Formation 2. Limestone, medium gray to brown weathering, becomes very dark gray along strike, massive, sparingly fossiliferous . . . . . . . . . . . . . 17 1. Limestone, dark gray to black, 2 to 3 foot beds, Triticites sp. (Canyon type) . . . . . . . 12 Covered below. Section 12 Measured up the southwestern face of Leonard Mountain beginning from a gully at the foot of the escarpment due south of BM 5860 up to the top of the mountain. Units 1 through 4 are tightly folded and faulted and the thicknesses given are only estimates. Units 6 and 7 are in a sequence which dips 24° to the southwest and are truncated and unconformably over- lain by unit 8. Unit 18, the dolostone, is not a consistent horizon when traced laterally. Top of Ridge, BM 5860 Leonard Formation 19. Limestone, medium gray, massive locally but grades into 6 inch to 1 foot beds laterally,