This months Outdoor Life show a power line set up for fox....However being from NEPA.. We have a lot of power lines and we have a lot of giant boulder along the power lines too.. If you could get up on top of those rocks you could pick one off in either direction... Calling scenario would be not fox calling but yanking their chain...Make sure your camo blends in with the rocks and you can sit right on top of them.. I like Predator Brand Fall Gray Camo for this...Gray would be your best bet to blend in...