Cascade Springs

Cascade Springs is a natural cold spring in the limestone terrain of the southern Black Hills, south of Hot Springs, South Dakota. The spring produces clear, cold water at around 18°C that has maintained a remarkably constant flow for thousands of years, sustaining a spring-fed creek with a unique warm microclimate. The area is managed as a natural preserve. The nearby town of Hot Springs gives this cold-spring area its name context — the town is known for Evans Plunge, a large natural warm-spring swimming facility.