Tolovana Hot Springs
Tolovana Hot Springs flows at comfortable soaking temperature within Interior Alaska's boreal forest, managed by the Bureau of Land Management's Central Yukon Field Office. Located at 1,000 feet elevation near Ester, this spring combines warm waters with relatively accessible location, making it one of the more popular thermal features in the Tolovana River Valley.
The spring emerges within a dense forest of white and black spruce, where summer brings wildflowers and active wildlife viewing, while winter transforms the landscape into snow-covered silence. The thermal waters warm small pools and streams that flow into the river system, creating pockets of lush vegetation in an otherwise austere subarctic forest. Visitors hike through quiet forest to reach the spring's warming embrace.
Tolovana Hot Springs represents geothermal activity along tectonic structures in Interior Alaska's complex crustal zone. The water chemistry—with elevated sodium and chloride at 321 and 615 mg/L respectively—indicates circulation through deep formations where heated water dissolves salts before rising to the surface. The spring is the most remote of the Tolovana Valley's big 4" hot springs
yet still accessible compared to other Alaskan thermal features."
The water at Tolovana Hot Springs is slightly alkaline (pH 7.7). It is notably rich in sodium (supports circulation and skin hydration) and chloride (natural antiseptic with skin health benefits).