National Natural Landmarks

Big Spring Creek

Big Spring Creek
Big Spring Creek

Big Spring Creek is unique in the Southern Rocky Mountains biophysiographic province as a spring-fed, gaining stream formed by groundwater discharging from an unconfined aquifer. Located within Great Sand Dunes National Park and Preserve, the stream flows out over an eolian sand sheet, forming emergent wetlands that support a diversity of rare species and plant communities in an otherwise arid landscape. The meandering creek provides an excellent example of natural geologic and hydrologic patterns.

Location: Saguache County, CO ; Saguache County, CO

Year designated: 2012

Acres: 440

Ownership: Federal

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