At any rate,I wouldnt want to be the guys that have to drill and blast under that overhang.Or the guys that have to drill the overhang.
I do know the drillers and blasters I worked with up north would drill that no problem and their only 3 hours away.They like outrunning falling and fly rock.
I got video of them doing that.

The blaster used to rip by me on her quad with a stick of dynamite between her legs.