Gallatin

Watershed Hydrology

The Gallatin Watershed (HUC 10020008) is located in southwestern Montana and covers approximately 2,800 square miles of land. The watershed is characterized by high-elevation mountains and valleys, which receive significant amounts of snow and rainfall throughout the year. The hydrology of the watershed is dominated by the Gallatin River, which flows through the region and provides important surface water resources for the surrounding communities. One interesting climatic fact about the Gallatin Watershed is that it experiences significant variations in snowpack from year to year, which can have important implications for water supply and management. Additionally, the watershed contains several large reservoirs that are used for water storage and irrigation purposes, including the Hebgen and Ennis Reservoirs. Overall, the Gallatin Watershed is an important ecological and hydrological region in Montana, and its management and protection are critical for maintaining the health of its ecosystems and water resources.


Surface Flows

Gallatin Watershed

Snowpack Depths

Gallatin Watershed

Dams & Reservoirs

Gallatin Watershed

Groundwater Levels

Gallatin Watershed

Gallatin Rivers

Rivers of the Watershed