Johnson Springs
Johnson Springs emerges at 115 degrees Fahrenheit at 6,080 feet elevation in Lincoln County near Afton, located just 220 feet from the nearest road. Recent USGS analysis measured water at 55 degrees Celsius with pH 6.6 and notably high mineralization including 1,900 mg/L chloride and 1,400 mg/L sodium. The spring exceeds ambient temperature by 73 degrees in terrain receiving 111 inches of annual snowfall.
At 6,080 feet elevation, the spring occupies valley country in western Wyoming where the Salt River Range rises to the east. The setting receives 25 inches of precipitation annually with average annual temperature of 41.5 degrees Fahrenheit, supporting sagebrush, mountain mahogany, and scattered conifer stands. The highly mineralized discharge creates distinctive white travertine deposits and mineral-stained ground visible from roadside. Nearby Stump Creek preserves visible wagon ruts from the Lander Cutoff of the Oregon Trail.
Johnson Springs likely takes its name from early homesteader or rancher, though specific documentation remains limited. The spring lies along the historic Lander Cutoff established in 1858 as shorter route to Oregon, with thousands of emigrants passing through this valley en route to Pacific Northwest. USGS geochemical sampling reveals water chemistry dominated by chloride and sodium, suggesting deep circulation through sedimentary rocks. The spring has remained in continuous use since settlement era.
The spring's roadside location provides year-round vehicle access. Visit any season, though winter visits offer dramatic steam displays against snow. Stump Creek Guard Station, 7 kilometers away, provides rustic rental accommodations along the historic Oregon Trail with visible wagon ruts. Winter access requires skiing, snowshoeing, or snowmobiling more than a mile to reach the cabin. Bring supplies for self-sufficient stays in this remote area.
Is Johnson Springs worth visiting?
Best for
- Hot spring soaking
- Easy day trips
- Overnight camping trips
The water at Johnson Springs is slightly acidic (pH 6.6). It is notably rich in calcium (may support bone density and joint health), magnesium (known for muscle relaxation and stress relief), and sodium (supports circulation and skin hydration).
Overview Stump Creek Guard Station is located along what was once the Lander Cutoff for the Oregon Trail. Visitors can trace the path that covered wagons traveled on over 150 years ago on their way to the Pacific Northwest. Wagon ruts are still carved into the soil. The guard station is accessible by car during warmer months, but guests should be prepared to ski, snowshoe or snowmobile more than a mile to reach he cabin in winter. Guest will need to bring much of their own supplies and gea...