Crater Lake NP - Lightening Rod of the Cascades
by ProPeak Photography
Title
Crater Lake NP - Lightening Rod of the Cascades
Artist
ProPeak Photography
Medium
Photograph
Description
The Chinook Native Americans called this extinct volcano Hischokwolas. John Hurlburt, a Polish explorer, named it for Hans Thielsen, a key railroad engineer involved in the construction of the California and Oregon Railroad.
Mount Thielsen is located just north of Crater Lake National Park and is a much older volcano (eruptive activity ceased about 250,000 years ago) than Mt Mazama whose eruption 7,700 years ago formed the caldera in which Crater Lake stands today. Like other mountains of Oregon's High Cascades, glacier erosion is much more significant on this mountain's structure, resulting in steep slopes and a horn-like peak.
The mountain has earned the nickname "Lightning Rod of the Cascades", because it's spire like peak is hit so frequently that rocks on the top 5' - 10' of the summit have melted into fulgurites - patches of dark glass resembling splotches of enamel paint, including a form of silica glass known as lechatelierite.
I found the mountain to be a visually captivating point in the otherwise seemingly uniform Umpqua National Forest.
Uploaded
May 28th, 2019
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