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 . Wind-whipped fire claims nearly 170 homes . No deaths or injuries reported since blaze started Monday .