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Iowa's Hidden 'Little Grand Canyon' Is The Midwest's Best-Kept Hiking Secret
Specifically, its incredible ravines such as those found in Zion National Park or the ever-popular Grand Canyon ... try the ...
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Ancient bat remains illustrate the role of caves as habitat anchors in the temporally dynamic landscape of the Grand Canyon
Globally, caves provide important refugia for bats. The Grand Canyon, more than 400 km (250 mi) long, consists of steep-sided, rocky formations with hundreds to thousands of natural caves. Two of ...