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SLOT
CANYONS
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pp. 102-103
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SLOT
CANYONS (to
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blue squares)
In Las Vegas, slots are those infamous one-arm bandits that
rob tourists of spare change. But to locals on the Colorado Plateau,
a slot is a dream world of swirling, convoluted canyon walls, a phantasm
of sculpted rock dancing in reflected light. The walls, often sunset-hued,
are sandstones deposited more than 160 million years ago, when a large
Sahara-like desert blanketed the Southwest.

The nearly vertical walls of these fissure-like slot canyons were
gouged out by water and debris that barreled through them after fierce
thunderstorms. What began as a thin crack in the earth widened and
deepened as water cut through layers of bedrock. Because slot canyons
penetrate rock that is the same type and hardness throughout, the
walls tend to erode evenly, producing a chasm of similar width from
top to bottom. But, where even slight irregularities exist, floodwaters
will strike the walls harder in some places than others, creating
hollows that enlarge as swirling water and scouring stones move through
them. The outcome is a series of sensuously rounded chambers connected
by narrow passages.
CAPTION
Upper Antelope Canyon (right)a dream world, inner sanctum, holy
placeand unfortunately overcrowded. The canyon is short and
narrowjust wide enough for one person to squeeze through in
spotsso the company of just a dozen visitors feels like a traffic
jam. To fully appreciate what a slot canyon can offer, try going there
in the off-seasonyou'll be justly rewarded.
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Copyright
© 2003 Wild Horizons Publishing, Inc. COPYRIGHT
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