Keystone to Denver

• Traffic

  Expect heavy traffic on I-25 as you enter the Denver metro area.
• Altitude

  Denver is at a high altitude; stay hydrated to avoid altitude sickness.
• Fuel

  Fill up in Cheyenne, Wyoming, to ensure you have enough for the final stretch.
• Weather

  Check for snow in the mountain passes during winter.
• Navigation

  I-25 is the main artery; it is very easy to navigate.

• Speed

  Traffic moves fast on I-25; stay in the right lane if you are not passing.
• Wildlife

  Watch for deer and antelope on the rural stretches of US-85.
• Winter

  Carry tire chains if traveling in winter, as mountain weather is unpredictable.
• Emergency

  Cell service is generally reliable along the interstate.

• Is there a bus?
  There are limited bus services, but driving is more practical.
• How long is the drive?
  About 6.5 hours.
• Are there tolls?
  There are some toll lanes in Denver, but the main highway is free.
• What is the best way to travel?
  Driving is the most convenient method.
• Is it a scenic drive?
  Yes, especially as you approach the Rockies.

• From Keystone, South Dakota, United States
• To Denver, Colorado, United States
• Modes

Late spring to early autumn for the best driving conditions.