Agree with these comments - this was a nice ride and I would do it again. Rode CCW from the marked starting point. Note that per municipal regs e-bikes are not allowed on single track and one or two little sections of this route might be strictly considered as single track.

very nice loop. I did it counter clockwise from Quinn's trailhead on semi-slick 700c 38mm tires. I would do this route again.

Starting at the South Round Valley trailhead is the most natural starting spot. Go north on the Rail Trail until the I-80 gate. Turn left and go up the steep gravel hill. Turn right under I-80 and take the gravel path next to the road on Echo Lane, take the path to the end of Wasatch Lane where it intersects with the Glenwild connect gravel trail. Ride the fast downhill road back to the Highland Drive Bike Path (or take the southern side of Glenwild if your feeling like riding some MTB singletrack). Take Highland all the way to the Round Valley Express. Take Cammy's south at the big intersection, then Matt's Flat to Fast Pitch and back to the parking area. Enjoy!