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this extends nearly to crest of the Lyons escarpment. Fountain west of Lyons escarpment practically same as in the anticline first visited. Collected a number of cephalopods , including two large ones, in the Benton on way back. Reached hotel at 5 p.m., very tired, back aching. Clear and quite warm out of the wind.
Mt. Mahogany does not constitute a compact formation on the sandstone slopes ending abruptly at the grass line below as it does at Box Elder . It is more scattered.
Berthoud, Colo. , May 30, 1908
Drove west from Berthoud and 2 miles north, then into gulch where we found the Dakota ridges widely separated and the Morrison limestones