Big Springs
National Natural Landmark
Photo of Big Springs
IN
BRIEF
Big Springs is the only first-magnitude spring in the country that issues forth from rhyolitic lava flows. It is the source of the South Fork of the Henrys Fork River. Ownership: Federal.
Big Springs is the only first-magnitude spring in the country that issues forth from rhyolitic lava flows. It is the source of the South Fork of the Henrys Fork River. Ownership: Federal.
DESIGNATION DATE
1980