Place

Stop 5: Tony's Spring

A geothermal pool of thick, white mud bubbles and boils on the ground.
Tony's Spring, or Excavator Spring

NPS

The spring here is called Tony’s Spring or Excavator Spring. It is a hot, bubbling spring with fumaroles surrounding it. According to local legend, this spring was formed when someone (maybe Tony?) dug down in the hillside and hit hot water. The temperature of the spring was measured at 120 degrees F in June of 2024.

We mentioned that there are fumaroles surrounding this spring. A fumarole is an opening in the surface of the earth where volcanic gases and steam escape. They can be very hot and very acidic. At 125 degrees F, the fumaroles near Tony’s Spring would burn your skin quickly.

Valles Caldera National Preserve

Last updated: December 12, 2024