Page:Popular Science Monthly Volume 80.djvu/549

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underlain by caves; Mukuntuweap in Utah—a peculiar and beautiful gorge; Shoshone Cavern in Wyoming and Lewis and Clark Cavern in Montana—limestone caves of great beauty; Natural Bridges and Rainbow Bridge in Utah—the four largest natural bridges in the world; Sitka in Alaska—the location of one of the earliest settlements and containing some of the finest totem poles known; Colorado in Colorado—an area of eroded monoliths similar to the well-known Garden of the Gods near Colorado Springs; Petrified Forest in Arizona—an area containing large deposits of silicified wood. Ten other national monuments are administered by the Department of Agriculture. That the parks have been administered so ably and successfully is due to the faithful and devoted work of the officers in charge for many years. By much work beyond the regular office hours these officials have managed to attend to the pressing questions and the current business