Oceanside - Assateague Island National Seashore
Assateague Island National Seashore
$30/night
State Park
Ocracoke Campground
Cape Hatteras National Seashore
$28/night
State Park
Olympic National Park Altair Campground
Olympic National Park
Free
State Park
Ozark
Buffalo National River
Free
State Park
Ozark NSR - Powder Mill
Ozark National Scenic Riverways
Free
State Park
Panther Camp
North Cascades National Park
Free
State Park
Peaks Of Otter Campground
Blue Ridge Parkway
$20/night
State Park
Pebble Creek Campground
Yellowstone National Park
Free
State Park
Pelton Basin
North Cascades National Park
Free
State Park
Peters River Campsites
Delaware Water Gap National Recreation Area
Free
State Park
Phantom Ranch
Grand Canyon National Park
$52–253/night
State Park
Phelps Lake Backcountry Campsites
Grand Teton National Park
Free
State Park
Pictured Rocks National Lakeshore Backcountry Sites
Pictured Rocks National Lakeshore
Free
State Park
Pine Top Wilderness Campground
Guadalupe Mountains National Park
Free
State Park
Pinecrest Group Campground - Big Cypress National
Big Cypress National Preserve
Free
State Park
Pinecrest Group Campground - Big Cypress National
Big Cypress National Preserve
Free
State Park
Pinecrest Group Campground - Big Cypress National
Big Cypress National Preserve
Free
State Park
Pink Jeep Campground
Big Cypress National Preserve
$5–10/night
State Park
Pinnacle Group Campsite
Great Basin National Park
Free
State Park
Pinnacles Campground
Pinnacles National Park
$39–119/night
State Park
Point Sublime - Primitive BackCountry Camping
Grand Canyon National Park
Free
State Park
Pope Bay
Assateague Island National Seashore
Free
State Park
Porcupine Flat Campground
Yosemite National Park
Free
State Park
Primitive Roadside Campsites— Croton Springs
Big Bend National Park
Free
State Park