About 550 firefighters were battling the blaze Thursday , with 160 others arriving for duty , said Laura McConnell , a spokeswoman for the Boulder County Incident Management Team . NEW : Some Boulder residents should `` think about '' evacuating , city says . `` Entire chains of trees '' ablaze in Rocky Mountain foothills . The fire has destroyed more than 1,000 homes and forced the evacuation of thousands more. No deaths or injuries reported since blaze started Monday .
NEW : Some Boulder residents should `` think about '' evacuating , city says . `` Entire chains of trees '' ablaze in Rocky Mountain foothills . The fire has destroyed more than 1,000 homes and forced the evacuation of thousands more. No deaths or injuries reported since blaze started Monday .