The employee was bolting on the South Mains section. EE was drilling a rib bolt in EE's 3rd row, when a piece of rock measuring 2' wide by 3' long by 6"" thick, fell from the entry appx 9 to 9.5 ft high in between the center t-pad and outer t-pad bouncing off the T-bar and coming down striking EE down EE's right leg and across EE's foot, causing a fracture to EE's right foot