Updated March 4, 2013 at 5:26 p.m.
Accidents involving more than 50 cars closed all lanes of I-70 in the mountains for much of Monday afternoon.
Westbound lanes of the interstate reopened about 4:45 p.m., with eastbound lanes re-opening about 5:15 p.m., the Colorado Department of Transportation reported.
Lake Dillon Fire Rescue reported one accident involving 25 vehicles and 27 people on I-70 in Silverthorne near the Blue River Parkway exit. Three people were taken to St. Anthony Summit Medical Center. Another pileup, about three miles east, involved 29 vehicles, according to the Colorado State Patrol, but no injuries were reported there.
A winter weather advisory is in effect for Steamboat Springs until 6 p.m. Monday. Road conditions can be found at www.cotrip.org.
Read more at The Denver Post.