Boreas Pass

Road trip guide: Boreas Pass in Colorado

Boreas Pass is a high mountain pass at an elevation of 3.507m (11,505ft) above the sea level, located on the boundary of Summit and Park counties in the U.S. state of Colorado. It’s a low-maintenance, rough gravel road closed in winters but passable by two-wheel drive automobiles in good weather.

Can you drive to Boreas Pass in Colorado?

The road to the summit, formerly known as Breckenridge Pass, is called Boreas Pass Road (County Road 10- Forest Service Road 404).

When was Boreas Pass in Colorado built?

Tucked away in the White River National Forest, the pass connects Breckenridge to Como. This route was used by prospectors during the gold rush that were crossing from South Park in search of gold in the Blue valley around Breckenridge. It used to be a railroad pass between Denver and the mining mountain town of Leadville. From 1872 to 1938 the road was used as a narrow-gauge railroad and gained fame as the nation’s highest narrow-gauge railroad. It was made into an automobile pass in 1952.

How long is Boreas Pass in Colorado?

The pass is 32.18km (20 miles) long, running north-south from Breckenridge to Como, in the central part of Colorado. Keep an eye out for bicyclists. At the summit there’s an ample parking and a mountain hut known as Ken's Cabin, built in the 1860's.

Is Boreas Pass in Colorado paved?

The road is a pretty, scenic trail, but very narrow in places with two-way traffic. Very busy in the fall. Some of the road is paved, but the higher you go, it is unpaved. This dirt road is well maintained, and accessible by 2WD vehicles when it is dry. If the road is wet or snowy, you will want 4WD. It has rough washboards and embedded rocks.

How long does it take to drive the Boreas Pass in Colorado?

Plan about 1 hour to complete the drive across the Continental Divide without any stop. However, it’s a very scenic drive and one of the best places in Colorado to see the stunning fall colors. There are splendid views of aspen trees and nearby Mount Silverheels and the Tenmile Range. If you like ghost towns, this is a great destination.

Is Boreas Pass in Colorado open?

Set high in the Colorado Rocky Mountains at the crest of the Front Range, the road is closed to all vehicles from October to May. 


To use information contained on this site is to do so at your own risk. is not responsible for the information contained in these pages. The website is for information purposes only and we assume no liability for decisions made as a result of the information provided here. You are still completely responsible for your decisions, your actions, and your safety.