Orange Mound Spring

Orange Mound Spring emerges from multiple vents at its summit and sides, creating deposits of travertine rock colored by orange cyanobacteria populations.

G.L. Henderson, an early assistant superintendent at Yellowstone National Park, named this thermal feature due to its characteristic orange coloration.

The spring exists within an area where Shoshone and Bannock peoples gathered minerals from the terraces to produce traditional white paint materials.

The spring maintains a consistent temperature of 170°F (77°C), with water flow patterns that change throughout different seasons of the year.

Multiple fractures beneath the spring form a natural plumbing system that channels heated rainwater and snowmelt from surrounding mountains to the surface.

GPS coordinates: 44.96640,-110.71480

Latest update: March 6, 2025 13:44