Little Grayback Tr921 is a seldom-used mountainside traverse, with a moderate ascent across the southern slopes of Little Grayback Mountain to Hanley Gap, near Squaw Peak.
The trail is 'little', at a mere 4.5mi out to Hanley Gap, so is sometimes extended by riding out FR2010 to Squaw Mountain and into Newt Gulch, then back.
Those preferring singletrack to forest road riding might do a shuttle with Mule Mt Tr919, although the Mule Mountain loop is a good ride by itself.
Stein Butte Tr929 is a better option for those seeking a substantial ridge ride.
With 8 creek crossings in the first 3mi, be ready for wet feet. Fortunately the trail traverses headwaters, so the crossings are not terribly wet.
Little Grayback Trail 921
Carlton Pasture Trail 930, Charly Buck/Baldy Peak Trail 918, Collings Mtn Trail 943, Cook and Green Trail 959, Da-Ku-Be-Te-De Trail 940, Grouse Creek Trail 941, Horse Camp Trail 958, Mule Creek Trail 1159, Mule Mountain Trail 919, New London Trail 928, Payette Trail 970, Stein Butte Trail 929, Summit Lake Trail 926
Little Squaw Trail 923, Squaw Lakes E Trail 925
Carberry Campground, Flumet Flat Campground, French Gulch Campground, Harr Point Campground, Hart-Tish Campground, Jackson Campground, Latgawa Cove Campground, Seattle Bar Campground, Squaw Lakes Campground, Tipsu Tyee Campground, Watkins Campground
Ranking consistently applied to all of the listed trails.