EARTHSC 1105 Lecture Notes - Lecture 26: Crater Lake National Park, William Gladstone Steel, San Andreas Fault
28 Nov 2017
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Evolution of the pacific border during the last 40 million years: (a) westward-moving. North american plate overrides farallon plate and begins to interact with the oceanic ridge sometime after 40 million years ago; (b) note early development of san andreas. From: kiver, e. p. , and harris, d. v. , 1999, geology of u. s. parklands, 5th edition. Crater lake history: 12,000 years ago some native americans living in the area may have witnessed the volcanic eruption that formed crater lake. Wesley hillman, henry klippel, and isaac skeeters were the first non-natives to see crater lake. He wrote articles, letters, petitions, and lobbied congress and several presidents: 1886 the u. s. geological survey ran a geologic study of the lake, 1902 - established as a national park. Thanks to the efforts of steel and his connections to president theodore roosevelt, crater lake became our sixth. National park: 1913 steel became the park"s second superintendent, and later the park"s commissioner.
