Biggs Junction, Oregon, is a well-known producer of some of the finest picture jasper in the world. Any Northwest rockhound who has been around for a while knows what Biggs, Blue Biggs, China Hollow, and Deschutes jaspers look like, and many have specimens gracing their collections. In the past, I’ve led Rock & Gem readers on a virtual exploration of the areas where the above varieties of jasper are found, and now I want to share with you another of my favorite locales, the Biggs triangle area.
In the January 2012 issue of Rock & Gem, I wrote about a visit our Yakima Washington club made to China Hollow, where we dug in two pits on land owned and mined by Don Hilderbrand. In the March 2015 issue of Rock & Gem, I wrote about Biggs jasper, Blue Biggs jasper, and Deschutes jasper, how each formed, and how to differentiate one from another. I’ve included a couple of photos in this article that also illustrates the differences. The area where the different jasper outcrops occur is called the Biggs triangle. The area extends from the Deschutes River’s mouth — where Deschutes jasper was mined back in the day by Hoot Elkins — to Rufus Oregon, which is east of Biggs Junction, and then on to China Hollow where Don Hilderbrand has been mining jasper and agate for many years.
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