Geyser Spring

Colorado’s Only True Geyser

Featured Route

Total Length
2½mi
Ascent
641ft
Difficulty
Moderate

Hidden away in the San Juan National Forest is Colorado’s only true geyser. While its eruptions may not compare to the bursts on display in places like Yellowstone, this spot has a charm all its own.

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Hiking
Out & Back
Geology
Fall Colors

Photos

Elevation Profile

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Timeline

Geyser Spring Trailhead

Be sure to check road conditions first, but most passenger vehicles will be able to reach this location in good conditions.

Start Hiking

For 1¼mi

Geyser Spring Trailhead Road, Geyser Spring Trail

The trail first crosses the meadow and over a newer footbridge before disappearing into the aspen forest. After a few switchbacks up the hill, you’ll start to approach a final stretch that leads to the geyser.

Geyser Spring

You may smell the sulfur in the air before you see this small, turquoise pool, though it’s not generally an overwhelming odor. Its eruptions are relatively mild and last about 12-15 minutes, with common intervals of 30-40 minutes. The carbon dioxide and hydrogen sulfide gasses create a dangerously low oxygen content near the pool, so don’t stay long near its surface or take a dip in the water! Leave the area if you feel at all lightheaded immediately.