Well, most of what we've been doing is of the "trundle downhill and hope it stops kinda in the right spot" variety. But yesterday's project was a little more involved. We actually had one really big rock that was the primary objective, but of course as soon as we started yanking on it, it broke in half. So we moved two pretty big rocks instead (plus a bonus big rock that we found under the main one). The trail is close to a road, so hauling in all of the chains and come alongs is pretty easy. If this was more remote, I'm not sure we'd bother.