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by sandy shales, then black shales, with very hard, massive sandstones and conglomerates below. Found no conglomerate in the easternmost ridge of the basal sandstone which would represent the off shore deposit. Reached hotel at 6:05 p.m. Retired early, very tired. Cloudy all day, sprinkling more or less.
Berthoud , May 29, 1908
Arose at 6 a.m. A bright morning. Yesterday we saw 2 mallard ducks at mouth of gulch. On a lake we saw a blue heron and some black terns? . Orioles are more common in the villages like Berthoud than at Boulder . Lark sparrows abundant in foothills, vesper sparrows not so abundant. Started for gulch west of town at 7:15. First visited the fine anticline. Fountain there