BLAINE COUNTY, Idaho (KTVB) -- Wednesday, the Wood River Valley woke up to a red air quality, which means everyone is urged to limit time outside. KTVB reports The Warm Springs drainage is one of the most threatened drainages near the Beaver Creek Fire. That area experienced a large wildfire in 2007 with the Castlerock Fire.

On Wednesday, fire managers issued a pre-evacuation order for residents in the upper drainage of Deer Creek (west of the Big Wood River) and Greenhorn Gulch. This is meant to give folks in those areas time to prepare, in case of an evacuation. Blaine County government will provide options for transporting and boarding horses that may be in the path of the wildfire. There are now more than 500 firefighters on the Beaver Creek Fire, with additional engines from local fire departments being brought in for structure protection.

Fire managers say the fire perimeter is nearing residences along Deer Creek Road. Details about the fire and road closures are available on Inciweb, and Blaine County residents can register for the Everbridge emergency alert system on the Blaine County Emergency Communications Page. Fire Information Center call lines are open from 7 a.m. to 10 p.m. at 877-647-0663 and 877-640-3904.