It's Summer - Be Prepared Changing and Variable Road Conditions in Rocky Mountain National Park
NPS Photo Take a Scenic Drive on Bear Lake RoadBear Lake Road is open year-round. In the winter and spring, be prepared for snow and ice on the road. Traction control may go into effect at any time.
NPS Photo Trail Ridge RoadTrail Ridge Road is the highest continuous paved road in the United States. It is 48-miles one-way across Rocky Mountain National Park and climbs to an elevation of 12,183 feet above sea level. During the summer season, Trail Ridge Road connects the towns of Estes Park and Grand Lake.
NPS Photo Old Fall River RoadOld Fall River Road will open for the season to vehicles on Saturday morning, July 4. This historic road normally opens to vehicles in early July. Old Fall River Road is a seasonal road open to vehicles each year from early July to early October.
What is a drive on Old Fall River Road like?
NPS Photo Interested in Learning About the Park's Shuttles or Bustang Buses?The RMNP Bear Lake, Moraine Park, Hiker Shuttle, and Bustang buses are in service for the summer season. Additional details, including route maps and schedules are available on the Shuttle and Transit webpage. Winter Driving - What Does it Mean When Traction Control is Active?For the safety of all motorists driving in Rocky Mountain National Park, 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. Where Can I Learn About the Current Status of Park Roads?
NPS How Can I Find Information on Roads Outside the Park?Visit the Colorado Department of Transportation for road conditions outside the park. |
Last updated: July 3, 2026