RATING: Roadside Attraction
LENGTH: 1+ hours
MAPS: Green River, UT
Crystal Geyser is a cold water geyser near Green River. Due to it's unpredictability, it can be an exercise in patience. It can go off anywhere between every hour to 24+ hours! Even if you don't get lucky enough to see it erupting, it is an interesting place to visit.
When dry, the trailhead is reachable in any vehicle.
To get there, take the east Green River exit (exit 164).
The geyser is a large flat area with a pipe sticking out. Eruptions of the geyser have created a large amount of yellow flow stone as the water drains down to the Green River a short distance away. It follows common sense, but please do not put anything down the pipe of try and approach the pipe during an eruption.
Eruptions occur at unpredictable intervals, and for unpredictable lengths. If you want to see an eruption, the best plan is to camp near the geyser. Although camping is not great, it is certainly possible. The noise when it erupts is enough to wake all but the deepest sleepers.
Wikipedia has an article on Crystal Geyser, but it is limited.