Clastic dikes at Badlands Natl. Park. #geologyrocks #badlandsnationalpark #BadlandsNPS #nationalparkgeek https://t.co/rqGdFqdUJr http://pic.twitter.com/B91x9QC8Ym
— ccarrigan (@GeosciImaging) June 27, 2017
via Twitter https://twitter.com/GeosciImaging
June 27, 2017 at 06:36AM
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