http://www.boston.com/travel/getaways/us/california/articles/2009/10/11/stop_and_smell_the_thermals/
Stop and smell the thermals
LASSEN VOLCANIC NATIONAL PARK - At about 9,000 feet, the persistently steep trail up Brokeoff Mountain levels off at the edge of an abyss. To the northeast, framed between jagged cliffs, sits hulking Lassen Peak, a dozing volcano more than 1,000 feet higher, still mostly bare of trees and cloaked in gray dust from its last big eruption, 94 years ago.....
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The cure for a fallacious argument is a better argument, not the suppression of ideas.
-- Carl Sagan