The logs are lodgepole, common in this area.When found in thick growths it is tall, slender and straight, a good teepee pole, thus the name. The bark is very thin and smells great. My wife takes about 15 minutes to peel one of these. One advantage of this tree is that it is not much harder to skin in the fall when the bark sets. Another advantage is they do not warp significantly, but may split somwhat. If I can hire a small bandsaw mill, that would be fine for the other lumber. If not I may just buy a basic mill. From what I've seen they are like tractors and sell for almost new price if cared for. Yes pictures will be forthcoming. As far a "square" goes, that is a 'hold your mouthright' issue. The engineers in the group better bring smelling salts. My house is pole built and it is not square. The floors squeak and the walls are wavy. We do love it however, it is comfortable to us in all seasons. The interior is a combination of wafer wood, cedar and knotty pine. I suppose the main issue is keeping the poles straight up. The basic layout will be measured square. We will pour small footing pads with quickcrete, and set pinned pier blocks on top. The poles will rest on the pier block pin. The center poles are 13 feet, the walls are 9. They will be cut to length later. Today is groundwork. Pictures this evening.