Found some beautiful basalt columns around Lucky Peak State Park just east of Boise. A quick google search doesn’t turn up any previous surveys, so these could make a good spot for some follow-on studies to our field work back in 2011.
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- Outcrop across Hwy 21 from Diversion Dam
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- Columns exhibit pronounced striae roughly 5 cm apart
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- In some cases, the columns are jointed horizontally along what appear to be striae.
