Subject
Automobile driving
Motor vehicles Recreational use
21
Forest roads
10
Shasta-Trinity National Forest (Calif.)
6
Eldorado National Forest (Calif.)
5
Tahoe National Forest (Calif.)
5
Roads
3
Los Padres National Forest (Calif.)
2
San Bernardino National Forest (Calif.)
2
Angeles National Forest (Calif.)
1
Forest reserves
1
Lassen National Forest (Calif.)
1
Santa Lucia Ranger District (Calif.)
1