Mt. Wilson Loop via Chantry Flats

Route: Up via Sturtevant Trail to the top of Mt. Wilson. Down via Upper Winter Creek Trail.
Mileage: 14 miles RT
Elevation gain: 4200'
Meeting point: Chantry Flats Parking Lot. Take Santa Anita Exit off 210. 34.1883339 -118.0218449
It's a strenuous hike with few stream crossings and there's a waterfall on the way.
Parking requires a National Forest Adventure Pass, and parking spots fill up quickly.