Tufas of calcium carbonate at lake in Mono Lake Tufa State Reserve, with mountains in the background, in California, United States of America, North America

Tufas of calcium carbonate surround lake in Mono Lake Tufa State Reserve, with snow capped mountains in the background, in California, United States of America, North America

Tufas (calcium carbonate), Mono Lake, Tufa State Reserve, California, USA, North America

Tufa formations at Mono Lake, South Tufa State Reserve, Sierra Nevada, California, United States of America, North America

Tufa formations at Mono Lake, South Tufa State Reserve, Sierra Nevada, California, United States of America, North America

Tufa formations at Mono Lake, South Tufa State Reserve, Sierra Nevada, California, United States of America, North America

Tufa formations at Mono Lake, South Tufa State Reserve, Sierra Nevada, California, United States of America, North America

Tufa formations at Mono Lake, South Tufa State Reserve, Sierra Nevada, California, United States of America, North America