The Arizona Transition Zone, sometimes referred to as the Central Highlands, is a northwest-trending belt or escarpment in the middle of the state that separates the Colorado Plateau to the north from ...
A view of the Stikine River near Wrangell and Petersburg. (Courtesy Cindi Lagoudakis) A geologist who has studied Southeast Alaska’s rocks and minerals for decades is creating a new geologic map of ...
PHOENIX — The ‘Bottomless Pit’ in the Flagstaff area has been an attractive nuisance for more than a century. The name is somewhat misleading. It’s called the bottomless pit but it’s not. “It’s open ...
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