Seep
Seep emerges at 95°F near Clifton in Greenlee County, flowing 30 degrees above the 65°F average annual temperature at 3,500 feet elevation in southeastern Arizona's mineral-rich canyon country. Recent USGS analysis reveals extraordinarily high mineral content with total dissolved solids exceeding 13,900 mg/L, making this among Arizona's most saline thermal springs.
The spring sits in rugged canyon terrain of the Gila Box Riparian National Conservation Area, where elevation and topography create a more temperate climate than lower Arizona deserts. Water emerges just 80 feet from roadside access, making this mineral-rich spring easily reached despite its remote location. The surrounding landscape blends Sonoran desert vegetation with riparian forest along nearby creek corridors.
The spring is roadside with minimal walking required for access. It sits within the Gila Box Riparian National Conservation Area, where camping is limited to 14 consecutive days in 28-day periods. Owl Creek Campground nearby offers seven campsites without potable water but with basic facilities. Visit spring through fall for comfortable temperatures; summer heat in this canyon country can exceed 100°F.
Seep's extreme salinity reflects deep circulation through mineralized bedrock in Greenlee County's tectonically active zone. The water's chemistry shows dominant sodium and chloride ions at 3,300 mg/L and 7,000 mg/L respectively, indicating passage through salt-bearing formations. Recent USGS testing recorded water temperature at 71°C (160°F) at depth, substantially hotter than surface measurements suggest deep thermal gradients beneath the spring.
The water at Seep contains 13900 mg/L total dissolved solids. It is notably rich in calcium (may support bone density and joint health), sodium (supports circulation and skin hydration), and chloride (natural antiseptic with skin health benefits).
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Located in the Gila Box Riparian National Conservation Area in Arizona, Owl Creek Campground has seven campsites, picnic tables, grills, ramadas, trash receptacles, and restroom facilities available to make your stay more enjoyable. There is no potable water available at the campground. Three of the campsites are pull-through sites, and four are pull-in sites, making the campground suitable for trailers and RVS. The campground is a stop on the Black Hills Back Country Byway, and it is also j...
Seep is road-accessible, so you can bring more gear. Bring sun protection for exposed soaking.
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