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Canyonlands National Park

By Geology and Ecology of National Parks
Lichens, such as those pictured above, often exhibit unique coloring which allows them to stand out from the rocks
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Detailed Description

Lichens, such as those pictured above, often exhibit unique coloring which allows them to stand out from the rocks to which they are attached. In this case, they are attached to light sandstone

Sources/Usage

Public Domain.