Show locate a shorter route from Camp Floyd to Carson valley found unmistakable evidence of the ancient lake and located valleys the same shore lines that had been observed by Stansbury at the north end of the lake ten years 25 F Y Hayden 1870 explored in the Great Salt earlier He established them Lake region and studied the shore lines as belonging to the Quaternary in Rush and Cedar years later 1872 Frank H Bradley conducted a survey mainly in the vicinity of Ogden After a complete study of the deltas of the region he drew the conclusion that before the high period of Lake Bonneville the lake had Two long stood not very much higher than was further shown that the its present level It canyons of the Wasatch were cut In 1877 A C Peale before the Bonneville high water era made observations of the terraces in Cache valley and suggested that the outlet was through Portneuf Pass® S F Emmons geologist of the Fortieth Parallel Expedition studied terraces J 25 46 H Simpson Explorations Across the Great Basin Preliminary Report of the U S Geological Survey of Wyoming and Portions of Contiguous Territor169-726 F Y ies Hayden 6 27 Frank H 192-9- 6 28 A C River District" the Territories Bradley Uj Sj Geological Survey 1872 "Report on the Geology of the Green S Geological and Geographical Survey of 1877 565 642 Peale |