The shock produced by the displacing of the air was such, that the rocks of the Chimneys shook.

The settlers, although they were more than two miles from the mine, were thrown on the ground.
They rose, climbed the plateau, and ran towards the place where the bank of the lake must have been shattered by the explosion.
A cheer escaped them! A large rent was seen in the granite! A rapid stream of water rushed foaming across the plateau and dashed down a height of three hundred feet on to the beach!.