The Upper Cottonwood Watershed (HUC 11070202) is located in the Wasatch Mountains of Utah and covers an area of approximately 66 square miles. The watershed is characterized by steep slopes, narrow canyons, and high elevation terrain, which contribute to its unique hydrology. The Upper Cottonwood Watershed receives significant snowfall during the winter months, with an average snowpack depth of around 100 inches. This snowpack serves as a critical source of water for the watershed's surface water and reservoirs during the drier months. The watershed's primary reservoir, Brighton Reservoir, is used for both municipal water supply and recreation. Interesting climatic facts include the watershed experiencing an average of 58 inches of precipitation annually, with the majority falling as snow, and temperatures ranging from an average high of 80°F in the summer to an average low of 20°F in the winter. Recent trends suggest that the Upper Cottonwood Watershed is experiencing earlier snowmelt and longer dry seasons due to climate change.