The tall towers of limestone known as tufa are particularly prevalent on the south shore of Mono Lake and even more so right here at the tufa grove.
Created by the reaction between salty lake water and the calcium rich underwater streams which flow into the lake from the flanks of the Sierras, the resulting limestone accumulates and forms a type of inverse underwater stalegtite. Although formed underwater, the 200 to 900 year old tufa you find here has become exposed to the air by receding lake waters caused by the controvercial diversion of a river for drinking water, that would normally feed the lake.
Tufa towers can grow at a rate of up to 1 inch per year, and the limestone stacks here vary in age from 200 to 900 years.
Alkali flies are usually unavoidable here by the edge of the lake. Often hatching from eggs laid on tufa, the flies make themselves busy by eating microscopic lake algae and bugging visiting tourists. Although air-breathing, these flies not only spend most of there time on the water's surface, but also can be found under it - they trap oxygen bubbles within hairs on their body and carry them underwater to facilitate breathing.