coyote blasting

coyote blasting

[′kī‚ōd·ē ‚blast·iŋ]
(mining engineering)
A method of blasting in which large charges are fired in small adits or tunnels driven at the level of the floor, in the face of a quarry or the slope of an open-pit mine. Also known as coyote-hole blasting; gopher-hole blasting; heading blasting.