• Hikers on Granite Pass in Rocky Mountain National Park/NPS photo by John Marino

    Rocky Mountain

    National Park Colorado

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  • Bear Lake Road Reconstruction Project

    Major construction work on Bear Lake Road in 2012 & 2013 includes changes to park shuttle routes, significant delays, and some night closures. More »

  • Fern Lake Fire

    Get the latest information on the fire and how to safely explore the burned area. More »

Mountain Driving

Trail Ridge Road ascending into the fog.

Trail Ridge Road

NPS photo by John Marino

Driving in the mountains provides many challenges. Steep roadways combined with less oxygen at higher altitudes can place additional demands on any vehicle. By following a few guidelines, you can help your car stay healthy at the park's higher altitudes:
  • Use lower gears while traveling downhill. You can slow down your car without wearing down the brakes. If you smell your brakes, pull over, let them cool off and test them before proceeding. Do not drive if the brakes are not working properly.
  • If the vehicle is losing power while traveling uphill, use a lower gear to help prevent power loss.
  • After stopping, let your car's engine run a minute before turning off the engine.
  • Do not use air conditioning. It contributes to power loss.
  • If the vehicle is losing power, has a rough-running engine or will not start, it may be experiencing vapor lock. If you suspect your vehicle has vapor lock, let it sit for 30 minutes. Loosen the gas cap and open the hood. If possible, remove the air filter. Try restarting the engine after 30 minutes.
  • If your engine dies, try to pull into a turnoff.
  • There are no service stations in the park. If you need towing or road service, notify the park by using an emergency phone or getting a message to a ranger station or visitor center. Towing and road service are available from Estes Park or Grand Lake.
  • Slower drivers should use the park's pullouts to let other vehicles pass.

Did You Know?

a photo of a spider web

Hummingbirds use spiderwebs to bolster their nests, which are the size of a walnut shell. Hummingbird eggs are the size of a Tic-Tac breath mint.