Weather service's early-morning flood risk alert didn't highlight Grand Canyon

Federal warnings about the Aug. 29 hazards at the Grand Canyon escalated quickly, like the storms that prompted them.
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Skip the national park crowds: This ancient South Dakota canyon is pure autumn magic

Spearfish sits at the northern edge of the Black Hills, and the reason to come in fall starts at the south end of town. Spearfish Canyon runs roughly 19 miles along U.S. 14A, following Spearfish Creek between limestone palisades down to Cheyenne Crossing.