Complex sentence: Located in a hollow of the Loess Hills, Glenwood was established by Mormons in 1848 as Coonsville and prospered during the California Gold Rush largely due to the grain mill on Keg Creek.
Split into simpler sentences: Located in a hollow of the Loess Hills, Glenwood was established by Mormons in 1848 as Coonsville. It prospered during the California Gold Rush largely due to the grain mill on Keg Creek.