These strange formations called tufas (click to enlarge),
are in Mono Lake at the eastern edge,
of The Sierrra Nevada Mountain Range in California.
They are made of calcium carbonate and formed by the interaction of fresh water with the saline/alkaline lake.
Mono Lake is 2-3 times more salty than the ocean.
It is one of the oldest lakes in North America.
Trillions of brine shrimp live in the lake,
supporting 1-2 million migratory birds annually.
On this winter day, the lake was mirror still and silent.
Cheers to you from Mono Lake ~
For more on Tufas see: https://www.monolake.org/learn/aboutmonolake/naturalhistory/tufa/