Crystal Geyser is a cold-water geyser located outside of Green River, Utah, known for its sporadic eruptions driven by dissolved carbon dioxide. The geyser erupts every 8-27 hours, with some eruptions lasting up to 14 hours. Its average height of eruptions is less than ten feet, and the geyser's activity is influenced by bubbling events leading up to an eruption. The geyser is located right along the Green River, so this is a great pit stop to make on a hot day.