![Working the Face of a Hydraulic Cut, c1912.](http://dawsonmuseum.ca/cdn/shop/products/1993.67.116_{width}x.jpg?v=1616613136)
Photograph of two monitors working the face of a hydraulic cut and one monitor running from above, with drains in foreground.
Photograph of two monitors working the face of a hydraulic cut and one monitor running from above, with drains in foreground.