Subject
Automobile driving
Motor vehicles Recreational use
42
Forest roads
24
Tahoe National Forest (Calif.)
15
Eldorado National Forest (Calif.)
7
Shasta-Trinity National Forest (Calif.)
7
Roads
6
Los Padres National Forest (Calif.)
5
San Bernardino National Forest (Calif.)
5
Angeles National Forest (Calif.)
2
Forest reserves
1
Lassen National Forest (Calif.)
1
Mendocino National Forest (Calif.)
1
Santa Lucia Ranger District (Calif.)
1