HomeWHENWhen Does Trail Ridge Road Close

When Does Trail Ridge Road Close

Snow Packed Road
Snow packed road in Rocky Mountain National Park

NPS

Planning to Drive in Rocky During the Fall, Winter and early Spring?

Road conditions and weather can vary greatly throughout the year. All visitors driving in and around the Rocky Mountain National Park area from mid-October to early June should be prepared for winter driving conditions. Roads may be snowpacked and icy. Remember to slow down and keep your distance from other vehicles. Keep an eye out for wildlife crossing roads. Due to weather and adverse conditions, roads in Rocky Mountain National Park may close at any time. Colorado Traction Control Law may be implemented as conditions require.

What Does it Mean When Traction Control is Active in the Park?

For the safety of all motorists driving in Rocky Mountain National Park during the winter season, the Colorado Vehicle Traction Law may become active at any time, based on weather and road conditions. While Rocky Mountain National Park has federal exclusive jurisdiction, the park is authorized under 36 CFR 4.2(b) to enforce applicable local and state traffic regulations. When the Colorado Vehicle Traction Law is active in RMNP, this means that all vehicles (including 4-Wheel Drive, All-Wheel Drive, and 2-Wheel Drive) must have properly rated tires (Mud and Snow, Mountain and Snow or All-Weather Tires) with a minimum of 3/16″ tread. If you have improperly rated tires on your vehicle, then you must use an approved traction control device. These may include snow chains, cables, tire/snow socks, or studded tires. When the traction law is in place in RMNP, if a vehicle is involved in a motor vehicle crash, to include sliding off the road due to icy conditions, motorists will be cited if their vehicle does not meet Colorado Traction Control Law requirements.

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Where Can I Learn About the Current Status of Park Roads?

  • For the latest information on park road status, keep an eye out for variable message boards in the park and follow us on Twitter @RockyNPS.
  • Since conditions change quickly, road status updates are not posted on the park’s website.

How Can I Find Information on Roads Outside the Park?

Visit the Colorado Department of Transportation for road conditions outside the park.

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