LASSEN VOLCANIC, CALIF.—Only recently active volcano in United States proper. Established 1916; 163.32 square miles. MAMMOTH CAVE, KY.—Interesting caverns, including spectacular onyx cave formation. Established for protection 1936; 54.09 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; 1.32 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 possibly oldest tree in world; outstanding groves of Sequoiagi gigantea. Established 1890; 604 square miles. SHENANDOAH, VA.—Outstanding scenic area in Blue Ridge. Established 1935; 282.14 square miles. WIND CAVE, S. DAK.—Beautiful cavern of peculiar formations. No stalactites or stalagmites. Established 1903; 19.75 square miles. YELLOWSTONE, WYO.-MONT.-IDAHO.—World’s greatest geyser area and an outstanding game preserve. Established 1872; 3,437.88 square miles. YOSEMITE, CALIF.—Valley of world-famous beauty; spectacular waterfalls; magnificent High Sierra country. Established 1890; 1,176.16 square miles. ZION, UTAH.—Zion Canyon, 1,500 to 2,500 feet deep. Spectacular coloring. Established 1919; 134.91 square miles. [Illustration: AREAS ADMINISTERED BY THE NATIONAL PARK SERVICE] NOTE GEORGE WASHINGTON MEMORIAL, BLUE RIDGE, AND NATCHEZ TRACE PARKWAY PROJECTS NOT SHOWN BECAUSE OF SPACE LIMITATION November 1, 1937 Transcriber’s Notes —Silently corrected a few typos. —This eBook is public-domain in the country of publication. —In the text versions only, text in italics is delimited by _underscores_. End of Project Gutenberg's Crater Lake National Park, Oregon, by Anonymous