Wire Pass (Paria Canyon-Vermilion Cliffs)

The Southwest is famous for its slot canyons, narrow passageways carved out of sandstone by the erosive power of fast, flowing water. These canyons typically have very high, vertical walls, making them shadowy and dark for most of the day. They become illuminated to the floor only when the sun is directly overhead. Some passages... Continue Reading →

Checkerboard Mesa, Zion National Park (UT)

Just east of the Mt. Carmel Tunnel lies Checkerboard Mesa, a remarkable example of crossbedding in Navajo sandstone, a mesa which you can't help but notice along the highway. Over eons in what used to be a great desert, shifting sands deposited one layer after another, their orientations determined by winds, all eventually cemented over... Continue Reading →

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