and there are some Halymenites major . I saw no Placenticeras or other fossils except those mentioned. The formation is practically the same as at Fossil Creek , gray sandstone containing numerous ironstone concretions, some several feet in diameter, the formation having a tendency toward forming an escarpment on the west side of the ridge and a gentle slope on the east side.
Ft. Collins , Oct. 9, 1907
Started for mouth of Owl canyon at 7:55 (25 minutes late on account of slowness of livery man) with team and driver from Mt. Ave. stable. Took the road running north from La Porte , following the Niobrara ridge most of the way. Found Benton formation mostly covered in a valley west of Niobrara, but outcropping in places as a calcareous sandstone just below Niobrara limestone, indeed forming a trans-