Rock slide at Glenwood Canyon halts travel on I-70 between Glenwood Springs and Dotsero . It 's unclear when crews will complete enough work to open at least part of the roadway . Giant rocks came tumbling down a snowy Colorado mountainside early Monday , punching gaping holes in the interstate below , the Colorado Department of Transportation said . Transportation department : About 20 boulders rolled down mountain shortly after midnight . Comment:
Rock slide at Glenwood Canyon halts travel on I-70 between Glenwood Springs and Dotsero . It 's unclear when crews will complete enough work to open at least part of the roadway . Transportation department : About 20 boulders rolled down mountain shortly after midnight . Comment: