This 1928 article goes through all of the steps used to have the Portland built boats transported to Ashland, reinforced, then moved to Crater Lake on wagons, then lowered 1000 ft to lake. It was dangerous business, but fortunately none of the workers were hit by the rocks that fell when the boats were lowered.
City
Crater Lake
Location
Vertical File Subjects, Crater Lake, 1 of 2
Source Reference