Crystal Geyser on the Green River...

is an unusual and rare CO2-driven cold water geyser that is depositing a colorful mound of travertine. Furthermore, it’s the result of an improperly abandoned oil/gas exploration well immediately south of Green River, Utah, and it periodically erupts on 8 and 22 hour-long cycles that are poorly understood.

An older, innactive but natural travertine and barite mound, originally described by John Wesley Powell on his explorations in 1869: “W e stop to examine some interesting rocks, deposited by mineral springs that at one time must have existed here, but which are no longer flowing...  “

An older, innactive but natural travertine and barite mound, originally described by John Wesley Powell on his explorations in 1869: “We stop to examine some interesting rocks, deposited by mineral springs that at one time must have existed here, but which are no longer flowing...

Mini-rimstone dams on the steeper portions of the travertine mound.

Mini-rimstone dams on the steeper portions of the travertine mound.

The most active portion of the travertine mound.

The most active portion of the travertine mound.

Here’s an interesting technical reference about this unusual feature: http://www.llnl.gov/tid/lof/documents/pdf/334382.pdf