Fairy Falls

Water seems to emerge from the cliff midway down; long cascades set on an ancient lava-plateau context

Fairy Falls illustrates differential erosion of volcanic bedrock on the Madison Plateau. The stream carves through rhyolite lava, with a hard caprock layer over softer underlying material creating an undercut and a vertical drop of about 200 feet (61 meters). Post-glacial floods and ongoing fluvial action continue to widen the canyon and sharpen the cliff line. The site sits in a lava-plateau setting near hydrothermal activity; proximity to Grand Prismatic Spring means nearby heat and mineral plumes influence the local environment, highlighting how thermal processes interact with volcanic terrain and surface water.

From Grand Loop Road, park in the Fairy Falls lot about 1 mile south of Midway Geyser Basin; follow the well-worn Fairy Falls Trail for 4.5–5 miles round-trip to the base and optionally take the Grand Prismatic Overlook spur.

Fairy Falls Trailhead

Fairy Falls Trail connects to Grand Prismatic Overlook spur

Base of the falls; Grand Prismatic Spring Overlook spur viewpoint

Rainbow-like spray at base on sunny days; mist ribbons in morning light; distant color field of Grand Prismatic when visibility allows

Base of falls; Grand Prismatic Overlook spur; meadow views along the trail

Bison, elk, bears (including grizzlies)

Afternoon thunderstorms common in summer; mosquito season June–July

Grand Prismatic Spring Overlook, Midway Geyser Basin, Old Faithful

Old Faithful Village, Madison Junction facilities, Midway Geyser Basin facilities

Mostly flat with occasional uneven sections; Grand Prismatic Overlook spur is uphill with stairs

Long hike; keep children close near edges; bear awareness; carry water

Midway Geyser Basin restrooms; Old Faithful facilities; potable water at Old Faithful Visitor Center