Colorado Springs area Little Fountain Creek section - Taken in Nixon Brothers quarry in gsp Little Bountin Cr, 14 Dekota hogback Benton shale: (50) 0.6 Bentonite 49) 4.8 Shale, black, silty, blocky 48) 0.1 Bentonite 47) 1.8 Shale as above, silty weather brown in basal 0.2 46) 0.2 Bentonite 45) 1.2 Siltstone, aquillicious, soft weatherous brownish gray 44) 0.2 Bentonite 43) 2.0+ Shale dk gray-black silty 42) 9.7 Sandstone, fine-grained, in massive beds up to 3' thick. x-lam. Bedding planes with ripple-marks, worm castings. Some interbeds silty shale in upper part 48