
Having a rest: Mosbaugh balances cross legged during the dare devil stunt
Fellow daredevil Andy Lewis went one step further.
He dangled almost 2,800ft above the ground attached to the line by only an ankle strap.
The pair were joined by fellow Americans Hayley Ashburn and Scott Rogers who together call themselves the Moab Monkeys.
The group travel the world discovering new highlines and BASE jumps.
Highlining is considered the pinnacle of the slacklining sport, in which people prove their balancing skills by walking across a polyester or nylon wire is fixed at two points.
Andy Lewis is a proponent of 'free-solo' slacklining, where no safety harness is worn.