My wife and I just purchased some acreage out East of Brush Prarie Washington in Hockinson.. We are in dense Douglas fir forests and I'm looking to build a backstop as we have our home built this spring and summer. I've done some reading online about using railroad ties (where does one find these?) in a U shape about 12 feet tall and then having dirt and sand dumped and placed up against it. I'm curious if anyone locally has any experience they would like to share and better yet if you have done it before if you are willing to assist (I'll of course pay you for your troubles). Also - what's the easiest way to double check I have the legal right to shoot firearms in my locations? We are out there quite a ways but I of course want to make 100% sure there are no issues before building it.