Zion National Park in Utah was flooded after it received more than an inch of rain in an hour.
After a flash flood was declared by the National Weather Service, an active technical Search and Rescue operation was performed at the park.
Zion National Park experiences monsoons from mid-July into September that result in an increased risk of flash floods.
The floods often occur without warning and can increase water flow by upwards of 100 times. (REUTERS)