| | the South Appalachians. | | Pike's Peak | Central | The most frequently climbed | Colorado | 14,000-foot peak in the world; | | excellent view-point, rising | | abruptly from the plains. | | Dunes | Northern | Lake Shore; extraordinary | Indiana | aggregation of plants from warm, | | cold, wet and dry zones. | | San Juan | Southwestern | Magnificent mountains, individual | Colorado | in form and color, with large | | scene-commanding plateaus. | | Grand Mesa | Western | Lake-dotted plateau that towers | Colorado | near splendid horizons. | | Bighorn | Northern | A towering, rocky, scenic Mountains | Wyoming | alpine-island area in the sea | | of plains. | | Niagara Falls | International | Stupendous waterfall; might well | Park between | become an international park. | Canada, and | | New York near | | Buffalo | | | Mount Shasta | Northern | Highest peak in northern | California | California; alpine flowers; | | lava deposits; scenery. | | Mount Hood | Northern | Volcanic peak; icefields and | Oregon, near | forests. | Columbia River| | | Roosevelt | Arizona | Enormous dam; vast reservoirs; Project | | desert areas; cactus park; | | historic ground. | | Cañon de Chelly | Arizona | Towering monolithic rocks; high | | vertical colored cañons; cliff | | dwellings. | | Sierra Madre | Near Los | Sierra Madre mountains; rare plant | Angeles, | life; commands unusual scenes. | California | -----------------+---------------+------------------------------------ D NATIONAL MONUMENTS ADMINISTERED BY THE INTERIOR DEPARTMENT