Grayback Mountain is a truly outstanding 4x4 adventure in Colorado

Grayback Mountain is a high mountain peak with an elevation of 3,853 m (12,641 ft) above sea level, located in Rio Grande County, in the U.S. state of Colorado. It’s one of the highest roads in Colorado, offering great views of the surrounding mountains.

Grayback Mountain

Where is Grayback Mountain?

The peak is located in the southern part of Colorado, within the Rio Grande National Forest. A radio tower is situated at the summit.

Is the road to Grayback Mountain unpaved?

The road to the summit, also known as Greyback Mountain, is completely unpaved. It’s a single-lane road with two hairpin turns before reaching the summit. The road is not difficult, as it provides access for maintaining the radio equipment at the top. Most of the road is visible ahead, whether climbing or descending, so vehicles can pull into a turnout to allow oncoming traffic to pass.

How long is the road to Grayback Mountain in Colorado?

The road to the summit is quite steep. Starting from Summitville Road, at Indiana Pass, the ascent is 2.84 km (1.76 mi) long. Over this distance, the elevation gain is 214 meters. The average gradient is 7.53%.

Can I drive my vehicle to Grayback Mountain in Colorado?

A high-clearance 4x4 vehicle is recommended, but the road may be accessible by a 2x4 vehicle if you have some off-roading experience. This road is not suitable for passenger cars or low-clearance vehicles!

Is the road to Grayback Mountain open in winter?

Set high in the San Juan Mountains, this area is primarily accessible during the summer months. The road leading to the site remains impassable until the snow drifts have melted, typically by mid-July. Winter temperatures here are extremely harsh, and weather conditions can change rapidly, so it's important to stay alert to any cloud formations. Given the alpine environment, visitors should be prepared for sudden changes in weather, including the possibility of rain or cold temperatures—pack a warm jacket and rain gear just in case. The best time to visit is during the early to mid-morning hours. It’s advisable to avoid the early afternoon, as thunderstorms are common during this time. If a thunderstorm with lightning approaches, remain inside your vehicle and leave the area as soon as possible.

Is the road to Grayback Mountain in Colorado worth the drive?

The views are definitely worth the effort. It’s a great place to get a 360-degree panorama of the San Juan Mountains.