Jeremy Ranch Road
This is perhaps one of the most well-known rides around when it comes to mixed-terrain, but it’s certainly not something to be done without some sort of preparation. Plenty of climbing, but there’s nothing particularly steep. Be prepared for some serious dustiness going down Jeremy Ranch Road and through Echo Frontage Road.
The roads are long and straight forward. Again, leaving from Contender Park City, take the local bike path past Kimball Junction and along the highway. This will lead you to Jeremy Ranch Golf Course, where soon after the road turns to dirt. Highway 65, aka East Canyon Road, descends into the smooth dirt of Henefer Frontage Road. You’ll pass Echo Dam (not a bad place to take a mid-ride break), and ride back into Park City on the dirt rail trail.
This is one of the most famous all-road or gravel bike rides around, and for good reason. It’s a long ride, but doesn’t feature much climbing for how long the ride is. A road bike could do this ride, but you’ll likely be much happier (and comfortable) on something with a wider tire.