I believe their website says if you pick it up... it's $29 for a 50 pound bag. I'm 4 hours each way to them, so I have it shipped. It is cheaper if you purchase multiple bags for shipping, but you would have to buy A LOT of bags to get it down to $29 per bag shipped.
I would drive up there, but that means taking a day off work for me since I believe you can only drive up M-F (I would have to recheck their site, haven't looked at it in a while on that).