The Lower Spokane Watershed (HUC 17010307), located in eastern Washington, covers an area of 2,991 square miles. It is dominated by the Spokane River, which is fed by numerous tributaries. The hydrology of the watershed is primarily influenced by snowmelt, and the region experiences a significant snowpack each winter. Surface water in the watershed is used for irrigation, hydropower, and recreation, with several large reservoirs serving these purposes. Water quality in the reservoirs is impacted by nutrient loading and sedimentation, and efforts are underway to improve management practices to mitigate these issues. The climate in the region is characterized by hot summers and cold winters, with average temperatures ranging from 20-80°F. Trends in the region include increasing temperatures, decreased snowpack, and prolonged droughts. These trends have implications for water management and agriculture in the watershed.