Snake River Plain Aquifer
1 states · 25,800 sq km · unconfined
Moderate Risk
About the Snake River Plain Aquifer
The Eastern Snake River Plain Aquifer is one of the most productive aquifers in the United States, with water flowing through highly permeable basalt layers. It supplies most of southern Idaho's irrigation and feeds the spectacular Thousand Springs in the Snake River Canyon.
Area
25,800 km²
Depth Range
500–1,500 ft
States
1
Rock Type
Basalt
Key Facts
- ▸Thousand Springs complex discharges over 4,000 cubic feet per second
- ▸Supplies approximately 80% of Idaho's irrigation water
- ▸Water moves through basalt flows at up to 30 feet per day
- ▸Recharge comes primarily from winter snowmelt
- ▸Conjunctively managed with surface water rights
States Overlying the Snake River Plain Aquifer
Explore Water Assets Over the Snake River Plain Aquifer
See every tracked spring, well, and water right that draws from this aquifer on our interactive map.
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