The Walker Watershed (HUC 16050303) covers an area of approximately 1,520 square miles in eastern California and western Nevada. It is an important source of water for both states, providing irrigation for agriculture and drinking water for communities. The watershed is characterized by high-elevation mountains, with snowpack and precipitation being the primary sources of surface water. The snowpack contributes significantly to the hydrology of the region, with snowmelt occurring in the spring and summer. Reservoirs on the Walker River store water for use during dry periods. The main reservoirs, Topaz and Bridgeport, are used for irrigation and recreation. Interesting climatic facts include the region's high variability in precipitation from year to year and its susceptibility to drought. Climate change is expected to exacerbate these trends in the future.