The unusual rocks at Mono Lake. Geologists call them “tufa.”

Bodie-154 TUFA, LPHOTO, BLOG

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Lower Antelope Canyon

Lower Antelope-402 1-12-18 LPHOTO, AZPHOTOS, PHOTO OF DAY, BLOG

At certain times of year, and during certain hours of the day, three beams of light can be seen at once for a few minutes in Lower Antelope Canyon. This shot was in a month of September, around noon.