Chetco

Watershed Hydrology

The Chetco Watershed (HUC 17100312) covers an area of approximately 352 square miles, situated in southwestern Oregon. It is a region of significant hydrological diversity, with steep slopes, varied geology, and extensive forests that affect runoff and stream flow patterns. Snowpack is an essential source of water, with the highest elevation areas accumulating the most snow. Surface water is critical for the region, serving for recreational activities, agriculture, and the domestic water supply. There are several small reservoirs within the watershed, which are used for water storage. The Chetco Watershed experiences a Mediterranean climate, with mild, wet winters and warm, dry summers. The region has experienced a drying trend in recent years, with reduced snowpack and changes in streamflow patterns. These changes may have long-term impacts on the watershed's ecology and economy.


Surface Flows

Chetco Watershed

Snowpack Depths

Chetco Watershed

Dams & Reservoirs

Chetco Watershed

Groundwater Levels

Chetco Watershed

Chetco Rivers

Rivers of the Watershed