Calcium carbonate deposits formed on the bottom of highly alkaline Mono Lake when fresh water bubbled up from below, leaving behind these 'tufa towers' when the lake level lowered.
Statistics
Place: 65 out of 222 Avg (all users): 5.8592 Avg (commenters): 6.5000 Avg (participants): 5.6250 Avg (non-participants): 5.9597 Views since voting: 1202 Views during voting: 301 Votes: 213 Comments: 7 Favorites: 0