The area is also one of the busiest shipping routes in the world.
The shipping route was divided into three sections by the construction plan of 1936.
Elephant Island was an inhospitable place, far from any shipping routes.
When the last of spring's gales had blown themselves out, the shipping routes were open.
According to the 1936 construction project, the shipping route consisted of three sections.
The rivers served as important shipping routes when Alabama had few good roads.
Trade on the Mississippi, one of the nation's most important shipping routes, is down drastically this year.
By 1918 there were very few sailing ships left on the major shipping routes.
This is the main shipping route into the lake Mälaren.
Many key shipping routes still pass through the region.