Antelope Canyon - Rain does not have to fall on or near the Antelope Canyon slots for flash floods to whip through, as rain falling dozens of miles away 'upstream' of the canyons can funnel into them with little prior notice.
Antelope Canyon - In 1997, before access was restricted, eleven tourists were killed in Lower Antelope Canyon by a flash flood. Very little rain fell at the site that day, but an earlier thunderstorm had dumped a large amount of water into the canyon basin, seven miles upstream.
Antelope Canyon
