Route: from the Sinks Canyon Campground, head over the bridge crossing the Middle Fork Popo Agie River and up the doubletrack for 3 miles to the paved parking lot. Cross over Sinks Canyon Road at the kiosk and cross the river again. Ride up the wide singletrack 1.5 miles to the junction with Popo Agie Falls. Stop and enjoy the view and then continue on up the trail (or you can turn around here). The next 4.5 miles to the Sheep Bridge are looser and rockier than the first previous stretch up to the falls. The trail ends at a junction with Sheep Bridge Trail. Turn around here, or add more miles by taking Sheep Bridge Trail south to either Wortham Meadows Reservoir or Sheep Bridge Roaring Fork Trailhead.
All of this trail is scenic as it almost always follows the Middle Fork Popo Agie River. Early summer is best when the river is roaring with snowmelt and the wildflowers are blooming. The first part of this trail are fairly easy up to the upper parking lot. Then then next have a steeper grade with log-water bars and some rocky technical areas. The last 4.5 miles are narrower, with more loose rocks, ruts, and horse ruts. The 1.5 miles from the upper parking lot can be busy with hikers. Hikers and horses frequently use this trail. The ride up is a chore with most people having to hike-a-bike some sections, but the ride back down is a technical blast. Watch for wildlife, including bears.