From west to east, Ridgeline starts from the Javelina Canyon Trail. The trail follows the ridge on the northern side of Pima Canyon, passing over a few hilltops along the way. The trail is not terribly technical, but it is steep and rocky in some spots. After the last descent, you'll end on the Beverly Canyon Trail.
If you are not in the mood for riding on the gravel road between the Pima Canyon Trailhead and where National Trail and Mormon Loop Trail start, you can combine Ridgeline and a few others as an alternate route.
For example, at the end of Ridgeline take a left onto Beverly Canyon Trail and then a right onto the Pima West Loop and work your way back to the parking lot.