Jolly Mountain Tr1307 should be shuttled and is otherwise too short to be a destination ride, but offers some steep, creekside terrain once on the trail.
The ride can be extended a little by using Yellow Hill Tr1222 to ride to the Jolly Mountain summit and back.
Nearby Paris Creek Tr1393.1 is hiker-only, so Jolly Mountain Spur Tr1307.1 is not a good ride option.
25mi Jolly Epic: Using Jolly Creek Tr1355 to ride to Middle Fork Teanaway Tr1393, returning on Boulder De Roux Tr1392 would create a semi-epic 25mi (7900' ascent) CCW loop ride, with two steep ascents.
Note: The Elsnor Mine Tr1392.8 section is hiker-only, but is a hike-a-bike anyway.
The rest of this route is open to biking and Koppen Mtn Tr1225 could be used to access Boulder De Roux Tr1392.
The Area Topo Map shows all of the trails on this epic route. The Esmeralda Basin Tr1394 page covers some of the same terrain.
Jolly Mountain Trail 1307, Sasse Mountain Trail 1340
Paris Creek Trail 1393.1, Skookum Basin Trail 1393.2
Red Mountain Campground, Salmon La Sac Campground,
Ranking consistently applied to all of the listed trails.