Downieville Downhill features 16 miles of hiking trails near Downieville, CA.
From Downieville go Hwy 49 North East past Sierra City to Bassetts, turn left go 1 mile turn left over bridge take first right turn follow signs to Packer Saddle-Start. This about 20 or more miles from town, and during the summer season, Coyote Adventures offers shuttles a few times a day right to the start-call them. Do this because the loop is about 35 miles and the road is flat out dangerous to ride on! The views up on top of Packer Saddle are sweeeeeeet! Go down pavement, stay right turns to dirt quickly then look for drop in on left side of dirt road called Butcher Ranch, This trail needs GOOD working brakes and bring lots of the nessessary tools and extra tube, you are out in the boonies here.
http://www.tripleblaze.com/trail.php?c=3&i=104