Gold Fork Hot Spring
Gold Fork Hot Spring delivers 127°F water just steps from the road at 4,960 feet in Valley County, combining easy access with genuinely hot source temperatures. Its pH of 9.5 ranks among the most alkaline in Idaho, and the sodium-dominant chemistry at 70 mg/L produces water that feels remarkably silky.
Pull off the road and the spring is right there, steam rising from the source where it meets the cold mountain air. The setting sits in a mountain valley near Cascade, surrounded by mixed conifer forest and open meadows. Winter transforms the area into a snow-blanketed landscape receiving nearly 12.5 feet of snow annually, with the contrast between hot water and frozen ground creating thick clouds of vapor.
The spring taps the same geothermal system that feeds several thermal features in the Long Valley graben, a down-dropped block of earth's crust bounded by faults. USGS data shows the water reaches 122°F at depth, carrying extremely low calcium at 1.1 mg/L and no meaningful magnesium, indicating prolonged contact with deep granitic rock before rising to the surface.
Access is roadside, just 150 feet from pavement. The spring sits near Cascade, which provides gas, food, and basic services. Be aware that the 127°F source temperature can cause burns at the point of emergence. The annual air temperature averages only 42°F, so layered clothing is essential. Paddy Flat Guard Station offers reservable shelter about 11 miles away.
Is Gold Fork Hot Spring worth visiting?
Best for
- Hot spring soaking
- Easy day trips
- Overnight camping trips
The water at Gold Fork Hot Spring is alkaline (pH 9.5).
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Overview The Paddy Flat Guard Station is located in the Payette National Forest of central Idaho. Guests enjoy the remote area for its hunting opportunities and abundance of hiking, biking, horseback riding and off-highway vehicle roads and trails. Abundant streams and numerous alpine lakes within travel distance offer fantastic fishing opportunities. Recreation The Paddy Flat Guard Station serves as an excellent jumping-off point for adventures via horseback, motorcycle, ATV or hiking. N...