Cool Geology along Crown Zellerbach Trail

Layers of basalt from ancient lava flows helped form the hills of Columbia County. The basalt takes unique shape depending on how the lava cooled. With the Crown Zellerbach Trail being an old logging road, there are a few areas where the road cuts through the adjoining hillsides and exposes the geological past. I (Matt)Continue reading “Cool Geology along Crown Zellerbach Trail”