Dead trees in the terraces of <a href="https://en.wikipedia.org/wiki/Mammoth_Hot_Springs" class="extiw" title="w:Mammoth Hot Springs">Mammoth Hot Springs</a>, <a href="https://en.wikipedia.org/wiki/Yellowstone_National_Park" class="extiw" title="w:Yellowstone National Park">Yellowstone National Park</a>  grew during inactivity of the mineral-rich springs, and were killed when <a href="https://en.wikipedia.org/wiki/calcium_carbonate" class="extiw" title="w:calcium carbonate">calcium carbonate</a> carried by spring water clogged the vascular systems of the trees. <a href="https://en.wikipedia.org/wiki/Crepuscular_rays" class="extiw" title="w:Crepuscular rays">Crepuscular rays</a> are seen at the steam getting out of <a href="https://en.wikipedia.org/wiki/hot_spring" class="extiw" title="w:hot spring">hot springs</a>.
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<span class="int-own-work" lang="en">Own work</span>