Dusty Geyser is a small pool set below the ground surface of solidified sinter. Fractured sinter and some vegetation covers the surrounding area. Mostly dormant since 1987, it last erupted in 2004. Recent activity is often just splashes. Activity can often coincide with Rusty Geyser.

Dusty Geyser has an average temperate of 189.7°F (87.6°C), an average pH of 8.1, and an average conductivity of 2151 uS/cm.

Geysers

Geysers have constrictions in their plumbing systems that prevent water from moving freely to the surface where heat would escape. Water beneath the constrictions creates a buildup of steam. Eventually the steam pushes water past the constrictions and the geyser erupts.

Use Caution in Hydrothermal Areas

• Stay on boardwalks and designated trails.
• Hydrothermal water can severely burn you.
• Never run, push, or shove.
• Supervise children at all times.
• Do not scratch hydrothermal mats.

You are responsible for your safety.

Think safety, act safely. Yellowstone is a dangerous place.