Utah State University Extension
Throughout Utah, forestlands act as collectors of pure water. Much of Utah’s water supply originates in high elevation forested watersheds. These forests play a vital role in purifying and maintaining clean water for streams, lakes and groundwater.
Daniels, Barbara; McAvoy, Darren; Kuhns, Michael R.; and Gropp, Ron, "Managing Forests for Water Quality: Streamside Management Zones" (2012). All Current Publications. Paper 1209.