Dragline working to lower the outlet channel of Earthquake Lake on October 18, 1959

Dragline work to lower the outlet channel of Earthquake Lake on October 18, 1959. The tripod on the hill at center left is one of five lighting plants that allowed nighttime work. Note the “bathtub ring” of killed trees along the shoreline marking the high stand of Earthquake Lake before lowering of the outlet channel. Photo by Mrs. Steven W. Nile (Dr. Steven Nile was a physics professor at the Montana School of Mines [now Montana Tech]).