Periodic Intermittent Spring

“The spring the breathes” – Intermittent Spring, also called Periodic Spring, is located in Swift Creek canyon in Star Valley, near Afton, Wyoming. From late August to May, the flow cycles on and off at regular, predictable intervals. The spring runs up to 100 cubic feet per second of clear, ice-cold water for about 18 minutes. The water then begins to subside and gradually ceases altogether for 15-20minutes. The Spring is located approximately five miles East of Afton, Wyoming.