Pacific Crest National Scenic Trail
Padre Island National Seashore
Palo Alto Battlefield National Historic Site
Pea Ridge National Military Park
Pecos National Historical Park
Pennsylvania Avenue National Historic Site
Perry's Victory and International Peace Memorial
Petersburg National Battlefield
Petrified Forest National Park
Petroglyph National Monument
Pictured Rocks National Lakeshore
Pinnacles National Monument
Pipe Spring National Monument
Pipestone National Monument
Piscataway Park
Point Reyes National Seashore
Pony Express National Historic Trail
Port Chicago Naval Magazine National Memorial
Potomac Heritage National Scenic Trail
Poverty Point National Monument
President's Park (White House)
Prince William Forest Park
Pu'uhonua o Honaunau National Historical Park
Puukohola Heiau National Historic Site
