Devil's Lake Wisconsin

Devil's Lake is a pleasant climbing area near Madison Wisconsin featuring rolling hills covered with woods and many hundreds or thousands of short climbs on slippery orthoquartzite (see below.) It has a venerable climbing history and many traditions and a respected climbing organization. Then, of course, there is the DLFA ......

From The Encyclopedia Brittanica ...

sandstone that has been converted into a solid quartz rock. Unlike sandstones, quartzites are free from pores and have a smooth fracture; when struck, they break through, not around, the sand grains, producing a smooth surface instead of a rough and granular one. Conversion of sandstone to quartzite may be accomplished by precipitation of silica from interstitial waters below the Earth's surface; these rocks are called orthoquartzites, whereas those produced by recrystallization under high temperatures and pressures are metaquartzites.

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This page was last modified on 07/18/14 at 20:46.
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