Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
How Do You Make a Hat? Marker
Photographer: Barry Swackhamer
Taken: August 14, 2020
Caption: How Do You Make a Hat? Marker
Additional Description: Caption: (map, lower left) The Columbia Basalt eruptions lasted for about 10-15 million years and covered 63,000 miles of Washington, Oregon, and Idaho with 40,000 cubic miles of basalt. They are famous in the world of geology and are the most-studied basalts on the planet.
Submitted: October 26, 2020, by Barry Swackhamer of Brentwood, California.
Database Locator Identification Number: p546002
File Size: 3.216 Megabytes

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