The
Sierra Estrella
are a typical
Basin and Range
set of mountains, and are the highest range in the immediate Phoenix area. They are composed of
Precambrian
rocks, both
schist
and
granite
.
This view is from the trail to the summit of Butterfly Mountain.
Next View
>>
See the
GeoHistory
page if you want to know more about why the landscape looks the way it does, or
return to the map of "The Rocks of the Valley of the Sun"
for more view locations.
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