drift mines were linked to the shore by overhead cable tracks or rails and coal dumped over the winter was collected by ship after the summer thaw. that is for all of us. the school was authorized by the state in 1906, and the first phase of the campus was developed between 1909 and 1917.  the school opened in 1910.  the school had a typical patient population of 1,200-1,300 during the 1920s. to date, it has not been released in the us. 