 Springs are located in the alluvial fans at the base of the Pilot Range, and no water flows from the Silver Island Mountains.Shallow groundwater (e.g., Bettridge Creek, with threatened Lahotan cutthroat trout) along the western edge of the playa varies from fresh water to brine over a distance of about 2,000 feet.The Pilot Valley Playa gets very little precipitation, experiences extreme temperatures and high wind speeds.