sky island
n.— «From a parched sea of desert in southeastern Arizona, Mt. Graham rises 2 miles to a crested summit above the clouds. Isolated in time and space for 11,000 years, the mountain is what biologists call a sky island, “a cradle of evolution.”» —“A Desert Mountain Versus The Stars” by Carol Ann Bassett Newsday (Long Island, New York) May 5, 1987. (source: Double-Tongued Dictionary)
Further reading
Sean in Oneonta, New York, says that when he was growing up in New Jersey, his family would pile in the car and set off on a surprise adventure, whether a short distance or long, and the kids would be told only that they were going on Buxtehude...
Asthenosphere, a geologist’s term for the molten layer beneath the earth’s crust, sparks a journey that stretches all the way from ancient Greece to the author of Uncle Tom’s Cabin. Plus: What the heck is a dogberg? It’s when...