Blue Biggs Jasper stone. Blue Biggs Jasper is a silicated volcanic ash. It was formed during a volcanic eruption and is part of a Miocene series of rocks called the John Day Formation, near Biggs, Oregon, USA. It is a decorative stone used for jewellery and trinkets.
With some of the best waterfall hikes in the Pacific Northwest less than an hour from town, Portland residents and visitors don’t have to travel far to get close to nature. If you want to chase waterfalls in Portland, Oregon. Start here.