Rockhounding Fun in Montana

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The Stonedog's Mercantile


Island Butte - Beaverhead Impact Site

The Beaverhead Impact Site offers a very unique phenomenom, stone that has been altered in the instant of impact of a huge meteor, leaving tell-tales behind that document the eighth largest identified meteorite impact site known in the world. The force of the impact squashed solid rock like foam rubber - an eight inch thick rock, for example, would have been squeezed to about three inches thick, and then would have rebounded back to five inches, all in fractions of a second. The results of this major trauma are impact or shock cones. Access to the area in which these unique materials may be found is from Interstate 15 south of Dillon via secondary or county roads. Allow an hour driving time to reach the collecting area after you leave I-15.


From time-to-time, new location cards will be added to this list, so you may want to check back often.



Whitefish, Montana 59937-3128
Email jericho@cyberport.net
© Copyright 2013 Jerry Hanson/Akinesahtl