Whitmore Pool Hot Springs

## Overview Whitmore Pool Hot Springs is a natural geothermal spring located in the Eastern Sierra region of California, near the town of Mammoth Lakes. Situated at approximately 37.63°N, 118.81°W, this hot spring sits within the Long Valley Caldera — one of the most geologically active volcanic regions in North America. The Long Valley Caldera was formed roughly 760,000 years ago by a massive volcanic eruption, and the residual geothermal activity continues to heat groundwater that surfaces at numerous hot springs throughout the area. Whitmore Pool Hot Springs is one of several well-known soaking spots in the Mammoth Lakes vicinity, a region celebrated for its abundance of natural hot springs. The name "Whitmore" is associated with the nearby Whitmore recreation area managed by Mono County. The spring feeds a warm pool that has long attracted visitors seeking a relaxing soak amid the dramatic high-desert landscape of the Eastern Sierra, with sweeping views of the surrounding volcanic terrain and mountain peaks. ## Directions 1. From the town of Mammoth Lakes, head south on US-395. 2. Turn east (left) onto Benton Crossing Road (also known as Whitmore Tubs Road in some local references). 3. Continue along Benton Crossing Road for several miles, keeping an eye out for unmarked dirt turnoffs on the south side of the road that lead to various hot spring pools in the area. 4. Whitmore Pool Hot Springs is located in the general vicinity of the Whitmore recreation area. Look for small dirt pullouts and follow any visible foot trails toward the spring. 5. GPS coordinates (37.6300, -118.8119) can be used for navigation, though cell service may be limited in this area. It is recommended to download offline maps before heading out. *Note: Road conditions on the dirt turnoffs can vary seasonally. A high-clearance vehicle may be helpful, especially during winter and spring months.* ## What to Expect Whitmore Pool Hot Springs offers a rustic, undeveloped soaking experience typical of the Eastern Sierra hot springs. The geothermally heated water emerges naturally from the ground and collects in one or more pools. Water temperatures at hot springs in this part of the Long Valley Caldera generally range from warm to very hot depending on the specific source and time of year, so visitors should always test the water temperature carefully before entering. The surrounding landscape is high-desert sagebrush terrain at an elevation of roughly 7,000 feet, with panoramic views of the Sierra Nevada to the west and the Glass Mountains to the east. The area can be quite exposed, with little shade, so sun protection is advisable during warmer months. Winters bring cold temperatures and potential snow, though the contrast of soaking in hot water on a crisp winter day is part of the appeal. As an undeveloped hot spring, there are no facilities such as restrooms, changing rooms, or trash receptacles. Visitors are encouraged to pack out all trash and leave the area as they found it. The springs are on public land and are generally free to access. The area can attract other visitors, particularly on weekends, so early mornings or weekdays tend to offer a more peaceful experience. The mineral content of the geothermal water in the Long Valley Caldera area is typically elevated, with dissolved minerals common to volcanic hot springs. Visitors have historically used the water for soaking rather than drinking.