Jewel Cave National Monument contains Jewel Cave, currently the second longest cave in the world, with just over 157 miles (253 kilometers) of mapped passageways. It is located approximately 13 mi (21 km) west of the town of Custer in South Dakota's Black Hills. It became a national monument in 1908.
Read more about Jewel Cave National Monument: History, Exploration, Hydrogeology, Visitation
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“What a wonderful phenomenon it is, carefully considered, when the human eye, that jewel of organic structures, concentrates its moist brilliance on another human creature!”
—Thomas Mann (1875–1955)
“Do you know how poetry started? I always think that it started when a cave boy came running back to the cave, through the tall grass, shouting as he ran, “Wolf, wolf,” and there was no wolf. His baboon-like parents, great sticklers for the truth, gave him a hiding, no doubt, but poetry had been born—the tall story had been born in the tall grass.”
—Vladimir Nabokov (1899–1977)
“I came here for one thing only, to try to help national Ireland—and if there is no such thing in existence then the sooner I pay for my illusions the better.”
—Roger Casement (1864–1916)
“Their monument sticks like a fishbone
in the city’s throat.
Its Colonel is as lean
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—Robert Lowell (1917–1977)