Winiger Ridge (Gross Reservoir)

full-limited Icon
4.3/5 (28 reviews)
Boulder, Colorado (Boulder County)
Last Updated: 05/21/2023

Trail Information

Highlights

Located 45 minutes southwest of Boulder, Winiger Ridge is the only 4wd road that allows access to the western side of Gross Reservoir. This easy trail is great for weekend camp trips with friends or day trips to the lake for some fishing, kayaking, or paddleboarding. Kick back, relax, and enjoy the scenery. Be aware that there is no swimming allowed in Gross Reservoir. This trail is a little rough but short and easy enough that any 4WD enthusiast can do it. Just be aware the trail could be crowded with other drivers and many hikers and is only a single car wide.

Trail Difficulty and Assessment

Trail Navigation

Trail Reviews

4.3/5 (28)
Open
Rated 5/5
Visited: 08/30/2023
Difficulty Accuracy: Easier

Beautiful trip. Temperature was perfect and there was only one person camping on the trail. No other rigs to be seen. Beautiful views and a great trail.
Trail Review: Winiger Ridge (Gross Reservoir) - Dan Glavach
Trail Review: Winiger Ridge (Gross Reservoir) - Dan Glavach
View More Images
User Avatar
inline-aa Icon
300
Open
Rated 3/5
Visited: 08/23/2023
Difficulty Accuracy: Easier

I’m a Jeep this trail is relatively easy -2WD except for the uphill waypoint 8 with rocks. I was surprised to see some crossover AWD type vehicles at the parking at the end (Subarus and even a CRV). AWD and some reasonable ground clearance of 8+” is likely all that is needed, though I wouldn’t come out here in street tires either way.
Open
Rated 4/5
Visited: 08/06/2023
Difficulty Accuracy: Spot On

Overall, this is a fun trail and a good one to get started learning 4x4 off-roading, which, was in fact why I chose this one. Our trip was successful, and there were not a lot of people up on the mountain on this Sunday, most of the camp sites were even vacant. I expect the overcast weather, and threat of rain might have been keeping people away, but it made for a great experience. The wildflowers are also out! The reviews were great, and the detailed outline on the Trails OffRoad site was very helpful! The only disappointment was the view of Gross Reservoir, which is under construction, actually being expanded. The project will be completed sometime in 2025, however, right now there is a lot of construction equipment. Dual Sport Motorcycle Fans: This would be a really fun and easy trail to do.
Trail Review: Winiger Ridge (Gross Reservoir) - Kurtis Golding
Trail Review: Winiger Ridge (Gross Reservoir) - Kurtis Golding
User Avatar
300
Open
Rated 4/5
Visited: 08/05/2023
Difficulty Accuracy: Easier

First trail we did in CO. Easy trail with a nice view , saw someone in a Ford escape up there . Camp site was 100% full.
Trail Review: Winiger Ridge (Gross Reservoir) - Jake
Temporary Closure
Rated 5/5
Visited: 07/19/2023
Difficulty Accuracy: Spot On

Road closed for maintenance as of 7/19/23! Impassable from the trailhead. Can’t wait to come back when it’s open!

From the Community

Start a free trial and get this level of detail on every trail guide
Start Free Trial