Mill Creek Visitors Center to Onyx Summit

You can typically park at the Mill Creek Visitors Center itself, which serves as the starting point for this challenging ride. It's advisable to arrive early, especially on weekends, as this is a popular route for cyclists.

The best time to cycle this route is generally during the spring, summer, and early fall months. Be aware that higher elevations, especially near Onyx Summit, can experience much windier and colder conditions, and even snow in early winter. Always check the weather forecast before you go.

For general cycling on established roads like this route within the San Bernardino National Forest, a specific cycling permit is typically not required. However, it's always a good idea to check the official USDA Forest Service website for any current regulations or fire restrictions that might affect your visit.

No, this route is considered difficult and is not suitable for beginners. It features a continuous and demanding ascent with substantial elevation gain, making it a significant challenge best suited for experienced endurance cyclists.

The route is characterized by a continuous uphill climb on paved roads. The average grade is about 3.6%, with sections reaching 5-10% and a steepest quarter-mile at 11.2%. The roadway is generally in good condition, with a wide shoulder for the first half that narrows but remains present in the latter half.

Yes, the ride offers diverse and evolving scenery. You'll pass by Jenks Lake, experience the scenic CA 38 climb, and reach the high point at Onyx Summit. Early sections offer views towards Mentone and Redlands, while higher elevations provide breathtaking vistas of the San Bernardino Mountains and an immersive alpine setting.

This is a challenging road cycling route, and bringing dogs along for the ride is generally not recommended or practical due to the distance, elevation, and traffic conditions. If you're looking for dog-friendly options in the San Bernardino National Forest, consider hiking trails where dogs are permitted and can safely accompany you on a leash.

Given its length and elevation, proper preparation is crucial. You should bring ample water, nutrition, appropriate layers of clothing for varying temperatures (especially for the summit), sun protection, and essential bike repair tools. There are limited provisions along the route, with The Oaks restaurant in Angelus Oaks (around mile 11) being one of the few stops for refreshments.

While primarily a road cycling route, it does briefly intersect or run parallel to sections of several trails within the San Bernardino National Forest, including parts of the Santa Ana River Trail, PCT - California Section C, and Jenks Lake Trail.

The average duration for this 100.7 km (62.6 miles) racebike route, with over 2,200 meters (7,400 feet) of elevation gain, is approximately 5 hours and 50 minutes. However, your actual time will vary based on your fitness level, pace, and any stops you make along the way.

Provisions are limited along this route. The Oaks restaurant in Angelus Oaks, located around mile 11, is one of the few places where you can stop for food or drinks. It's essential to carry sufficient water and snacks for the majority of the ride.