Glad you posted this and with pics as well :) I came by this at 3 in the morning while it was parked there and I stopped to take a picture with my cell but it didn't pick it up very well. It is supposedly some kind of pipe being transported to Canada to be used for a factory up there. I don't know exactly what it is either, but I saw it on the news last week (It was built in Utah down in the Salt Lake Valley I do believe), they had to lift power lines and close down a few roads in some areas to get it to the main road they were traveling on which was probably highway-89. I dont think they took it down I-15. I'm surprised the H.J. didn't pick up on this and put it in the paper, I guess nobody tipped 'em. Thanks for the pics! :)