Cold Springs State Park
🏆🏆🏆🏆 Prairie Springs — Small park protecting natural cold springs in the Iowa prairie — one of the few remaining natural spring-fed areas in the state
Cold Springs State Park protects natural cold springs emerging from the Iowa landscape — one of the few remaining undisturbed spring-fed areas in a state that has been 99.9% altered by agriculture. Iowa has lost more of its original landscape than almost any other state — before settlement, 85% of Iowa was tallgrass prairie (the most productive grassland ecosystem on Earth), and 99.9% of that prairie is now farmland. Iowa’s topsoil (some of the richest in the world — up to 16 inches deep!) was built by 10,000 years of prairie grass decomposition. The springs at Cold Springs flow year-round at a constant cool temperature.
Visitor Information
| Detail | Information |
|---|---|
| Location | Iowa |
| Entry Fee | Free |
| Prairie Loss | 99.9% of original prairie GONE! |
| Topsoil | 16 inches — richest in world! |
About Cold Springs
Cold Springs State Park in Cass County covers over 60 acres in the rolling hills of southwestern Iowa’s Loess Hills — a landform found only in Iowa and parts of China. The park features a spring-fed pond, oak-hickory forest, and interpretive trails through the unique wind-deposited soil formations. The cold spring that gives the park its name still flows year-round.
Things to Do
Hiking on interpretive trails through the Loess Hills, fishing in the spring-fed pond, picnicking, wildlife observation, and cross-country skiing in winter. The park is part of the broader Loess Hills Scenic Byway route.
Insider Tips
Drift Prairie: Cold Springs sits on Iowa’s glacial drift prairie — thick deposits of glacial debris that created some of the world’s most fertile soil. Pro tip: Iowa’s topsoil is 14-16 inches deep on average — among the deepest and richest on Earth. Tallgrass prairie: Iowa was once 85% tallgrass prairie — less than 0.1% of original prairie survives.
Best Time to Visit
Summer: Prairie wildflowers and swimming. Fall: Harvest season. Spring: Green-up. Winter: Cross-country skiing.
Frequently Asked Questions
Why is Iowa’s soil so fertile?
Iowa’s fertility comes from two sources: deep glacial deposits (loess — wind-blown silt) and thousands of years of tallgrass prairie. Prairie roots penetrate 10-15 feet deep — when they die, they create deep, rich topsoil. Iowa’s 14-16 inches of topsoil is among the deepest on Earth. This natural endowment makes Iowa the most productive farmland in America — the state produces 15%+ of US corn and soybeans.
