Residents of about 250 homes in northern Utah are being evacuated, after high winds kicked up a fire that was started by target shooters.
The blaze, which covers 750 acres, started near a landfill. High winds helped fan the flames onto dry grasslands.
No injuries or structural damage have been reported.
The fire danger continues to be high across Utah and parts of Wyoming, Arizona, Nevada and Colorado, amid a mix of hot, windy and extremely dry conditions.
Firefighters trying to surround a 100-square-mile fire in northern Colorado are watching for spot fires that could ignite outside the main fire. The conditions that would make it easy for new fires to start and spread are expected to last through tomorrow.
In California, residents have been allowed to return to homes and cabins near a 385-acre fire outside Sequoia National Park. Firefighters have fully contained that blaze.
A New Mexico fire that has destroyed 242 homes and businesses -- the largest in state history -- is now 80% contained. (AP)