Cool, I was just moving several 3-4 ton granite boulders this weekend myself - almost up to 4 feet in diameter. Drug a couple, winch and snatch-blocked the biggest, and even used my little Kubota's loader to roll the smaller ones. I used a couple of mine equipment drive shafts as tracks. What fun. Now the backyard landscaping can go in and cap off this ten year project.
I didn't know what to do at first, but I did drive up on them as soon as Jim Sharkey's dump truck left them in a pile in the yard. Alas, I could not leave them there for my parking pleasure so now they are spread about the yard and sadly they are too big for my approach angle.