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The North Petrified Forest was discovered by John Muir in 1906 and many finely preserved Sigillaria trees with their peculiar roots and leafmarks show plainly that in this place flourished one of the noblest forests of the Carboniferous Period. The trees grew where they now lie and there are many standing stumps visible. This forest is famed for its basin, the north wall of which is sculptured like the Grand canyon.
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P:\SDCW Postcard Collection\UnitedStates\Arizona-01B
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