The Middle Humboldt Watershed (HUC 16040105) is located in Nevada and covers approximately 5,387 square miles. The watershed is characterized by arid to semi-arid conditions and is largely dependent on snowmelt for its surface water resources. Snowpack plays an important role in the hydrology of the watershed, with most of the snow storage occurring in the higher elevations of the Ruby Mountains. The watershed has several reservoirs that provide water for irrigation and municipal use. The surface water quality in the watershed is generally good, but some areas have high levels of total dissolved solids due to natural mineralization. The climate in the watershed is characterized by hot summers and cold winters, with precipitation mainly occurring in the winter months. In recent years, the watershed has experienced increased temperatures and decreased snowpack, which could impact the availability of water resources in the future.