The 1,191-acre Oak Ridge wildfire burning on U.S. Forest Service land in Pueblo County was 25% contained Thursday, fire officials said.

Firefighters made significant progress containing the blaze, which was sparked by lightning June 22 about three miles northwest of Beulah, but were bracing for hot and dry conditions, officials said Thursday.

More than 800 people were working to stop the fire’s spread by building containment lines aimed at protecting property in Beulah and the Middle Creek watershed, officials said.

Preevacuation notices remain in effect for Middle Creek Canyon Road, Vine Mesa, Cascade Avenue, Pine Avenue and Beulah Highlands Road.

The fire is the first to burn in the area in more than 100 years, forest officials said.