Negro Creek Tr1221 is a lightly used trail which may require pathfinding depending on recent maintenance.
Ingalls Creek Tr1215, Falls Creek Tr1216 and Cascade Creek Tr1217 are all Alpine Lakes Wilderness trails, off limits to bikers and limiting Negro Creek Tr1210 to an OAB ride.
Negro Creek Tr1210 crosses the Cle Elum county line, with the upper trailhead at Stafford Creek Tr1359, a challenging 15.5mi (5900' ascent) OAB.
With many creek crossings and progressively steep terrain as the trail ascends the Negro Creek drainage to Navajo Peak, the upper section gets even less use and may only be useful if shuttling to the FR9703 Stafford Creek Tr1359 TH.
Three Brothers Mountain Tr1211 includes a steep hillside traverse which could be explored when headed back to the TH.
Hikers could consider a 14.5mi Negro Creek Tr1210, Falls Creek Tr1216 and Ingalls Creek Tr1215 loop, possibly shuttling to the Negro Creek Tr1210 TH.
Negro Creek Trail 1210
Cascade Creek Trail 1217, Falls Creek Trail 1216, Ingalls Creek Trail 1215, Three Brothers Mountain Trail 1211
XC-006 Swauk Sno Park, XC-140, XC-623, XC-9714, XC-9715
Ranking consistently applied to all of the listed trails.