blast pattern, 2016

by Adam Jarvi

Digital Print

In order to extract the hard rock used at modern day mining operations on the Iron Range, mining companies will drill a large Blast Pattern of holes roughly 1 foot in diameter and approximately 40 feet in depth. The holes are each filled with up to 1,400lbs of explosives. The resulting blasts regularly register as seismic events and occur, like clockwork, once a week when the mine is operating. Because mining activity has expanded in recent years, blasts occasionally result in temporary closures of the region’s highways to prevent injury or damage from airborne debris.

Price: $125-$225