Heh, I was originally going to ask you for more information before my comment because the link wasn't the most descriptive on that incident, but briefly mention

Heh, I was originally going to ask you for more information before my comment because the link wasn't the most descriptive on that incident, but briefly mentions that it happened 6000 feet away from the dam, which got me curious. I think had some more luck searching for "Boxley Creek 1918" or "Boxley Burst" which was the name of the actual incident. http://www.historylink.org/File/2426 http://www.historylink.org/File/2426 was the first result on Google.