They do pipelines like that too i guess, I've never seen it but I've had buddies that have done a bunch of it. I kinda wonder who came up with doing that for the first time, and how that conversation went. "Well you see, you're gonna hop on the hoe and drive it off this cliff, and Jimmy here is gonna hold you up with this winch... oh yeah, nothing to worry about, we'll be up here watching you making sure everything is cool"