Lower Virgin

Watershed Hydrology

The Lower Virgin watershed (HUC 15010010) covers an area of approximately 1,920 square miles in the Mojave Desert region of southern Nevada and northwestern Arizona. The watershed is characterized by a dry climate and limited precipitation, with the majority of water coming from snowmelt in the surrounding mountains. Snowpack typically accumulates in the higher elevations during winter and spring months, providing a vital source of water for the region. The watershed contains several surface streams and tributaries, including the Virgin River, which provides water to the Lake Mead reservoir. The reservoir is an important source of water for the region, supplying water for agricultural, industrial, and residential use. Interesting climatic trends include an increase in temperatures and a decrease in precipitation, which could have significant impacts on water availability and management in the watershed.


Surface Flows

Lower Virgin Watershed

Snowpack Depths

Lower Virgin Watershed

Dams & Reservoirs

Lower Virgin Watershed

Groundwater Levels

Lower Virgin Watershed

Lower Virgin Rivers

Rivers of the Watershed