Subject
Trails
Outdoor recreation
8
Hiking
4
National parks and reserves
4
Ozark Trail (Mo. and Ark.)
3
Pacific Crest Trail
3
Wayne National Forest (Ohio)
3
Backpacking
2
Chequamegon National Forest (Wis.)
2
Cross-country skiing
2
Dixie National Forest (Utah)
2
Forest roads
2
Grasslands
2
Mark Twain National Forest (Mo.)
2
Santa Fe National Historic Trail
2
Spruce Knob-Seneca Rocks National Recreation Area (W. Va.)
2
Black Elk Wilderness (S.D.) Recreational use
1
Black Hills National Forest (S.D. and Wyo.) Recreational use
1
Comanche National Grassland (Colo.)
1
Comanche National Grassland (Colo.) Antiquities
1
Continental Divide National Scenic Trail
1
Croatan National Forest (N.C.)
1
Hickory Ridge Trail (Ind.)
1
Hoosier National Forest (Ind.)
1
Huron National Forest (Mich.)
1
Lincoln National Forest (N.M.)
1
Manistee National Forest (Mich.)
1
Motor vehicles Recreational use
1
Nicolet National Forest (Wis.)
1
Norbeck Wildlife Preserve (S.D.) Recreational use
1
North Country National Scenic Trail
1
Ozark National Forest (Ark.)
1
Picnic grounds
1
Pike National Forest (Colo.)
1
Pine Valley Mountain Wilderness (Utah)
1
Saint Francis National Forest (Ark.)
1
White Mountain Wilderness (N.M.)
1