Washington National Monument Wirginia 0,97 km² 150px Buck Island Reef National Monument Wyspy Dziewicze 76,95 km² 150px Cabrillo National Monument Kalifornia 0,65 km² 150px Canyon de Chelly National Monument Arizona 339,29 km² 150px Cape Krusenstern National Monument Alaska 2626,75 km² 150px Capulin Volcano National Monument Nowy Meksyk 3,21 km² 150px Casa Grande Ruins National Monument Arizona 1,91 km² 150px Castillo de San Marcos National Monument Floryda 0,08 km² 150px Castle Clinton National Monument Nowy Jork 0 km² 150px Cedar Breaks National Monument Utah 24,91 km² 150px Chiricahua National Monument Arizona 48,5 km² 150px Colorado National Monument Kolorado 83,1 km² 150px Craters of the Moon National Monument Idaho 1233,18 km² 150px Devils Postpile National Monument Kalifornia 3,23 km² 150px Devils Tower National Monument Wyoming 5,45 km² 150px Dinosaur National Monument Kolorado i Utah 850,96 km² 150px Effigy Mounds National Monument Iowa 10,22 km² 150px El Malpais National Monument Nowy Meksyk 462,46 km² 150px El Morro National Monument Nowy Meksyk 5,17 km² 150px Florissant Fossil Beds National Monument Kolorado 24,27 km² 150px Fort Frederica National Monument Georgia 0,98 km² 150px Fort Matanzas National Monument Floryda 1,21 km² 150px Fort McHenry National Monument Maryland 0,18 km² 150px Fort Pulaski National