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City of Rocks, Idaho. Scream Cheese. These granitic rocks have a crust known as "case hardening," which breaks off producing chicken heads, plates, and other edges.  See also, my Heuco Tanks photo in the geology album.
ID 106350498

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lin murphy
Feb 2, 2009
City of Rocks, Idaho. Scream Cheese. These granitic rocks have a crust known as "case hardening," which breaks off producing chicken heads, plates, and other edges. See also, my Heuco Tanks photo in the geology album.  

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