Complex sentence: Tule Springs in Las Vegas, Nevada, one of the larger urban retreats in the Las Vegas Valley, consists of a series of small lakes that formed an oasis in this part of the Mojave Desert.
Split into simpler sentences: Tule Springs in Las Vegas, Nevada, one of the larger urban retreats in the Las Vegas Valley. It is a significant desert ecosystem consisting of a series of small lakes that formed an oasis in this part of the Mojave Desert.