Page:Field Notes of Junius Henderson, Notebook 2.pdf/32

 strong ridge maker, highest ridge here, 24 ft. -Sandstone, fine grained, pink, mostly thin bedded, partly massive, near bottom making weak ridge; thin bedded part cross bedded, mostly weathering rapidly 50 ft. lies on E slope of escarpment -Sandstone, gray or yellowish, coarse or medium, rather strong making low escarpment 2 ft. -Sandstone, red, thin bedded, one zone dark and rather shaley, all fine grained, weathers readily   33 ft. -Chugwater or Lykins red shales, with strong Gypsum zone -Jurassic buff and gray sands and shale -Dakota sandstones with intercalated shales -Benton shales (found no limestone bands) -Niobrara in several ridges.

All below the Chugwater effervesces freely in acid, unless the lower conglomerates. The base of the sedimentaries consists of coarse conglomerate, gray to dark red