Roger Kenneth Mitchell March 22, 1938 – July 14, 2022 Roger Kenneth Mitchell was born March 22, 1938 in Waukegan, IL, and went to be with his Lord on July 14, 2022, aboard the cruise ship Ruby Princess while docked in Juneau, AK. Spending his youth in Trona, CA, Roger spent many hours exploring the surrounding mountains and desert near ...
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Yosemite Rockfall Year in Review: 2018
By Greg M. Stock — YOSEMITE — Yosemite faced a number of challenging events in 2018, including floods and fires. Fortunately, serious rockfalls were not among them. Forty-one events (including rockfalls, rockslides, and debris flows) were documented in 2018, below the recent (2006-2017) average of 53 events per year, and less than half of that documented in 2017. Rockfalls in ...
Read More »2017: A Record Year For Rockfall In Yosemite
By Greg M. Stock — YOSEMITE — There were many large and consequential rockfalls in Yosemite in 2017, with a record 85 events (including rockfalls, rockslides, and debris flows) documented. The cumulative volume of these events was about 36,800 cubic meters. Although this is not the largest annual volume recorded, greater volumes in previous years were typically dominated by one ...
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