East of Ketchum across from Sun Valley lodge, the White Cloud Trail System offers 4 miles of singletrack looping the White Cloud golf course. The White Cloud Trail System has three main trailhead access points and none have adjacent parking. The best place to park is at the Sawtooth National Forest ranger station in Ketchum on Sun Valley Road and ride the paved bike path to one of the trailheads. A popular route is to start from the eastern most trailhead just east of White Cloud golf course and residential community. Start riding up the 500 feet of vertical to the summit and then you can connect most of the singletrack for a 3.8 mile route back down to the trailhead across from Sun Valley Lodge.
Overall, White Cloud Trail System is the 59th most popular mountain bike trail of all 63 mountain biking rides in Idaho.