slgwv's photos with the keyword: travertine

And Indian Creek. A still-active travertine dome, where a spring is actively precipitating calcium carbonate to form travertine, a freshwater limestone. The dome figures prominently in the Maidu (the local Native American tribe) creation myth--despite which, it's also been quarried for limestone! California, USA.

Yet another view, showing the car for scale. The bowl is about 50 ft (15 m) deep.

A spectacular hot pool in a large travertine basin out in the middle of Monitor Valley, northern Nye County, Nevada, USA. Anywhere else this would be a park, with entrance fees, interpretive stations, and crowds; here it's just out in the BLM land, only shut off by a barbed wire fence! Feature, not bug-- The temperature of the pool is around 160 F, IIRC--not boiling, but plenty hot enough to scald quickly. It obviously is cool enough to support an algal population. No one seems to know who "Diana" was. Perhaps the name was given by some early settler with a taste for the classics, altho I don't remember the Roman goddess as being particularly associated with things like hot springs. It's also called "Devil's" punchbowl, which is more understandable if a lot more generic.

Another view, now looking northwest.