USDA Forest Service

Piedra Blanca

California

Backcountry Trail

City, Town, or County

Piestewa Peak Summit Trail

Arizona

Backcountry Trail

City, Town, or County

Pigeon Creek Greenway Passage

Indiana

Frontcountry Trail, Urban Trail

U.S. Corps of Engineers

Pigeon Creek Trail System

Arkansas

Backcountry Trail

U.S. Fish and Wildlife Service

Pine Lake Loop Trail

Washington

Backcountry Trail

U.S. Fish and Wildlife Service

Pine Ridge Nature Trail

Michigan

Backcountry Trail

U.S. Corps of Engineers

Pine Ridge Trail

Missouri

Backcountry Trail

City, Town, or County

Pine Ridge Trail

Washington

Backcountry Trail

USDA Forest Service

Pinecrest Lake NRT

California

Urban Trail

State

Pinelands Nature Trail

Delaware

Backcountry Trail

City, Town, or County

Piney Knob Trail System

North Carolina

Backcountry Trail

Private

Piney River Nature Trail

Tennessee

Backcountry Trail

USDA Forest Service

Pinhoti Trails System

Alabama

Backcountry Trail

Bureau of Land Management

Pinnell Mountain Trail

Alaska

Backcountry Trail

USDA Forest Service

Pioneer Loop Trail

Montana

Backcountry Trail

U.S. Corps of Engineers

Pioneer Nature Trail

Kansas

Backcountry Trail

USDA Forest Service

Pioneer Trail

California

Private

Pittsburgh-to-Harrisburg Main Line Canal Greenway

Pennsylvania

Backcountry Trail, Frontcountry Trail

State

Platte River Greenway Trail

Colorado

Frontcountry Trail

City, Town, or County

Pleasant Run Trail

Indiana