Charnock (Big Blue) Springs
Charnock Springs, also called Big Blue Springs, flows at 80°F on Bureau of Land Management property in Nye County, emerging 27 degrees above the ambient temperature of 53°F. The spring sits 1,213 meters from Lower Mine Road, requiring a three-quarter-mile walk across open public land managed by the Tonopah Field Office at 5,480 feet elevation.
The thermal feature occupies rolling desert terrain in the mountains and valleys surrounding Tonopah, where sparse sagebrush and native grasses cover the landscape. At 5,480 feet, the setting receives 7.9 inches of precipitation annually, supplemented by 27.8 inches of snow that typically falls between November and March. The walk from Lower Mine Road crosses BLM land subject to potential mining claims, though the immediate spring area shows little recent disturbance. Distant ranges rim the horizon in all directions, creating the wide-open vistas characteristic of central Nevada.
The name Charnock likely refers to an early rancher or prospector who claimed water rights or grazed livestock in the area, though specific documentation remains elusive. The alternate name Big Blue Springs suggests distinctive coloration, possibly from mineral content or algae growth. Mining activity has shaped much of Nye County's settlement history since the Tonopah silver rush of 1900, and springs like this one served as critical water sources for prospectors and livestock operations throughout the 20th century.
Spring through fall offers the most comfortable visiting conditions, with winter access depending on snow depth along Lower Mine Road. The three-quarter-mile walk requires sturdy footwear and route-finding skills across unmarked terrain. Carry ample water despite the destination, as the 80°F spring temperature makes the water suitable for bathing but not drinking without treatment. Combine with visits to other thermal features along the Tonopah corridor, where multiple springs lie within a day's drive.
Is Charnock (Big Blue) Springs worth visiting?
Best for
- Warm-water soaking