Utica-Union Byway

Total Miles 1.1
Technical Rating
2 Easy
Best Time Summer, Fall
Trail Type High-Clearance 4x4 Trail
Accessible By
Open Trail Map

Trail Overview

A dirt, granite rock route that gets your tires off the pavement and onto a dirt byway for a mile over to Utica/Union Reservoirs. You will encounter some deep water-type bars and two small rock gardens. The trail is one vehicle wide, Jeep-sized, and there are several primitive camp spots along the way. No low clearance vehicles-high clearance only. 4WD may be needed in spots as well as 4-low to help your vehicle out in the rock garden (depending on your gearing). There's nothing really hard and it's a great beginner route.

Photos of Utica-Union Byway

Difficulty

This route is closed come winter and opened back up per the USFS discretion. There are two small rock gardens to test your navigational skills-nothing hard, but a great short beginner's route. Depending on your gearing, just use 4-low to help your vehicle out. You may or may not need 4WD in spots due to loose gravel or mud/snow. There are a few downed pines but the route has been redirected around them. If you encounter any downed trees or roadblocks on this route, help out by moving them to the side. This is a great route to meander through a pine forest on your way up to Utica/Union Reservoirs as well as the Slick Rock 4WD route. Only street-legal vehicles are allowed. Pack In, Pack Out, Leave No Trace, Tread Lightly ethics apply at all times. Check the Calaveras Ranger Station at Hathaway Pines on the way up or online for Motor Vehicle Use Maps as well as campfire use restrictions and a permit.

History

A lot of OHV routes in this forest were once old log skidder trails as well as wagon routes.

Technical Rating

2

Status Reports

Add Status Report
Shane Groff
Aug 15, 2025
Open
Like others have said good beginner trail some deep washes on the south end rubbed the bottom of my pickup
Aaron Turner
Jun 21, 2025
Open
Good beginner trail. A few rocks to navigate. One spot near the south end is obstructed but there is a bypass.
Kenneth K
Aug 03, 2024
Open
There were many downed trees blocking the path, but in all cases there are alternate routes to bypass the trees. Might have to do some investigation so you don’t go off trail.

Utica-Union Byway Trail can be accessed by the following ride types:

  • High Clearance

Utica-Union Byway Map

The onX Offroad Difference

onX Offroad combines trail photos, descriptions, difficulty ratings, width restrictions, seasonality, and more in a user-friendly interface. Available on all devices, with offline access and full compatibility with CarPlay and Android Auto. Discover what you're missing today!

Open Trail Map