Montrose County Road and Bridge has closed Z84 Road, also called High Mesa Road, on the Little Cimarron, southeast Montrose County.
The closure begins 12.5 miles off the highway.
The road, which is covered with nearly 5 feet of snow, is blocked by significant debris. At this time crews are working to remove the debris and make repairs.
"Snow and water continue to be issues for my crew this season," said Road and Bridge Foreman Chuck Bell.
"Roads have washed out and remain snow-packed, but an avalanche like this is something I haven't seen in a while — there is a large amount of debris blocking the road."
The public will be notified when the road is made safe for travel. For more information about Montrose County Road and Bridge Department, please visit: https://www.montrosecounty.net/918/Road-and-Bridge-Montrose.