United Grain, operating out of the Port of Umatilla near McNary Dam, is also utilizing wheat piles to provide storage. it seems a common theme up and down the Columbia River. Allan Peterson, seen here, said a little geometry is needed to calculate the bushels in a pile such as this - cones and Pi R to the second come in handy. You better know the slope of the pile as well. Remember Pi - and not the coconut cream but 3.14159 - abbreviated because, well, this could go on forever.