Soda Dam Hot Springs
Soda Dam Hot Springs consists of fifteen separate thermal vents that have built a massive travertine dam across the Jemez River at 6,462 feet elevation. Water emerges at 117°F — 65°F above the local annual average — with USGS readings confirming 50°C. Chloride concentration reaches 1,510 mg/L at a neutral pH of 7.0. The formation is accessible by a short walk from the road.
The travertine dam rises in the steep, forested canyon of the Jemez River in the southern Jemez Mountains, where Ponderosa pine and mixed conifer cover the canyon walls. The calcium carbonate bridge structure spans the river, with mineral-laden water cascading over its sculpted face. Elevation here places the site in a transition zone between piñon-juniper woodland below and spruce-fir forest above. Annual precipitation is 15.8 inches with 34.2 inches of snowfall, reflecting the higher-elevation mountain climate of the Valles Caldera region.
The name describes the formation itself — dissolved carbon dioxide in the spring water gives it a fizzy, soda-like quality, and centuries of calcium carbonate deposition have built a natural dam across the Jemez River. The structure continues to grow as active springs deposit fresh travertine. Indigenous peoples of Jemez Pueblo have known this site for generations. The formation sits along Highway 4 in the Jemez National Recreation Area and has been a recognized geological landmark since at least the late 19th century.
The spring is visible from Highway 4, with a short walk to the formation itself. Jemez Falls Campground lies 7.6 km away at 7,880 feet elevation among Ponderosa pines. Dress in layers — mountain temperatures drop sharply after sunset, and 34 inches of annual snowfall means winter visits require cold-weather gear. The travertine is fragile; stay on established paths. Swimming in or near the dam is prohibited. Combine with a visit to Jemez Falls or the Valles Caldera.
Is Soda Dam Hot Springs worth visiting?
Best for
- Hot spring soaking
- Overnight camping trips
The water at Soda Dam Hot Springs is neutral (pH 7.0). It is notably rich in chloride (natural antiseptic with skin health benefits).
Overview Jemez Falls Campground is located in a stunning Ponderosa Pine and forest meadow environment. The campground elevation is 7,880 feet above sea level. Come prepared for warm days and cool nights. The Cerro Pelado Area closure prohibits members of the public from entering Trail 137 from access points South of the East Fork Trailhead. Entry is allowed North from the East Fork Trailhead to Las Conchas Trailhead. Please remember that this campground is special. Help keep it clean and bea...