Point to Point Cross Country and
Downieville Downhill course map
For those of you curious as to how 3 time All-Mountain World Champion Jason Moeschler does it, here's his Strava info from 2012:
Point to Point Cross Country
YOUR BEST BET
For maximum enjoyment and the ability to explore new rides, we recommend you buy this map; highlighting the varied terrain and world-class trails of the Downieville and Lakes Basin trail systems, including Downieville Classic racecourses. It is the most up-to-date and informative recreational resource for the area and features more than 100 miles of sweet Sierra singletrack.
Designations for motorized trails, non-motorized trails, the Pacific Crest Trail, historic trail alignments, and Forest Service 4x4 dirt roads are all present on this waterproof and tear resistant map.
Proceeds from maps sales go directly back into maintaining the loca trails, by benefiting the Sierra Buttes Trail Stewardship trail maintenance program.