Great Lakes Patrol assigned to operate against criminals who were ravaging the logging industry. These so called timber pirates conducted illegal cutting of timber on federal land and then smuggled the valuable commodity out of the area in order to sell it. The areas most affected were in the western Great Lakes region, along the coasts of Michigan, Wisconsin, Illinois and Minnesota. Much of these forested areas controlled by the government were reserved for the building of new warships. The illegal timber trade centered on Chicago and Milwaukee. It was nearly as violent as the alcohol trade, which was carried out over the
Great Lakes Greyhound Lines Milwaukee (in Wisconsin), and Chicago (in Illinois), as far to the south as Chicago (in Illinois), Dubuque (in Iowa), and Omaha (in Nebraska), and as far to the west as Sweetgrass, Great Falls, Helena, and Butte, Montana; it had met (to the west) the Northwestern GL, (to the north) the Western Canadian GL and the Eastern Canadian GL, (to the east and south) the Great Lakes GL and the (second) Eastern GL (formerly the second Central GL and the Pennsylvania GL), and (to the south) the Overland GL. Thus ended the Great Lakes GL and the Northland GL, and thus