CARLSBAD CAVERNS, N. MEX.--Beautifully decorated limestone caverns believed largest in the world. Established 1930; 15.56 square miles. CRATER LAKE, OREG.--Astonishingly beautiful lake in crater of extinct volcano. Established 1902; 250.52 square miles. GENERAL GRANT, CALIF.--Celebrated General Grant Tree and grove of Big Trees. Established 1890; 3.96 square miles. GLACIER, MONT.--Unsurpassed alpine scenery; 200 lakes; 60 glaciers. Established 1910; 1,533.88 square miles. GRAND CANYON, ARIZ.--World's greatest example of erosion. Established 1919; 1,009.08 square miles. GRAND TETON, WYO.--Most spectacular portion of Teton Mountains. Established 1929; 150 square miles. GREAT SMOKY MOUNTAINS, N. C.-TENN.--Massive mountain uplift covered with magnificent forests. Established for protection 1930; 617 square miles. HAWAII: ISLANDS OF HAWAII AND MAUI.--Volcanic areas of great interest, including Kilauea, famous for frequent spectacular outbursts. Established 1916; 245 square miles. HOT SPRINGS, ARK.--Forty-seven hot springs reserved by the Federal Government in 1832 to prevent exploitation of waters. Made national park in 1921; 1.58 square miles. LASSEN VOLCANIC, CALIF.--Only recently active volcano in continental United States. Established 1916; 163.32 square miles. MAMMOTH CAVE, KY.--Interesting caverns, including spectacular onyx cave formation. Established for protection 1936; 38.34 square miles. MESA VERDE, COLO.--Most notable cliff dwellings in United States. Established 1906; 80.21 square miles. MOUNT MCKINLEY, ALASKA.--Highest mountain in North America. Established 1917; 3,030.46 square miles. MOUNT RAINIER, WASH.--Largest accessible single-peak glacier system. Established 1899; 377.78 square miles. PLATT, OKLA.--Sulphur and other springs. Established 1902; 1.33 square miles. ROCKY MOUNTAIN, COLO.--Peaks from 11,000 to 14,255 feet in heart of Rockies. Established 1915; 405.33 square miles. SEQUOIA, CALIF.--General Sherman, largest and perhaps oldest tree in the world; outstanding groves of Sequoia gigantea. Established 1890; 604 square miles. SHENANDOAH, VA.--Outstanding scenic area in Virginia section of Blue Ridge. Established 1935; 275.81 square miles. WIND CAVE, S. DAK.--Beautiful cavern of peculiar formations. No stalactites or stalagmites. Established 1903; 18.47 square miles. YELLOWSTONE, WYO.-MONT.-IDAHO.--World's greatest geyser area and an outstanding game preserve. Established 1872; 3,471.51 square miles. YOSEMITE, CALIF.--Valley of world-famous beauty; spectacular waterfalls; magnificent High Sierra country. Established 1890; 1,176.16 square miles. ZION, UTAH.--Beautiful Zion Canyon 1,500 to 2,500 feet deep. Spectacular coloring. Established 1919; 148.26 square miles. [Illustration: AREAS ADMINISTERED BY THE NATIONAL PARK SERVICE]