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friable, impure sandstone, irregularly bedding, dipping E 12˚ and in passing N changing to NE 20˚, thus passing under the typical Fossil Ridge sandstone E of the reservoir. Proceeding E along the ditch bank half way to the Fossil Ridge sandstone, found impure sandy shale all the way dipping NE 18˚ to 20˚. Going W and N around head of Douglas Reservoir No. 10 is a typical massive sandstone with a tendency toward greenish gray color, containing hard and darker concretions just as at Fossil Ridge. Fossil less numerous than further south and consist only of Halymenites major, Inoceramus barabini, Callista deweyi, Anomia rectiformis, and Cardium speciosum. Collected
