Little Colorado Headwaters

Watershed Hydrology

The Little Colorado Headwaters (HUC 15020001) watershed covers an area of approximately 1,500 square miles in northern Arizona. The watershed is characterized by a high-elevation, semi-arid climate, with precipitation occurring primarily in the form of snow during the winter months. The watershed contains several small streams and tributaries that eventually flow into the Little Colorado River. The hydrology of the watershed is largely dependent on snowmelt, which provides a significant portion of the annual streamflow. Snowpack accumulation is closely monitored to predict spring runoff and manage water resources. Surface water in the watershed is generally of good quality, although some areas are impacted by livestock grazing and other land uses. Reservoirs in the watershed provide water storage for agricultural and municipal use. The watershed has experienced significant drought conditions in recent years, impacting both surface water availability and snowpack accumulation. Climate models suggest that the region will continue to experience warmer and drier conditions in the future, which may have significant impacts on water resources and ecosystems in the area.


Surface Flows

Little Colorado Headwaters Watershed

Snowpack Depths

Little Colorado Headwaters Watershed

Dams & Reservoirs

Little Colorado Headwaters Watershed

Groundwater Levels

Little Colorado Headwaters Watershed

Little Colorado Headwaters Rivers

Rivers of the Watershed