DMIR 406 pulls empty ore cars from the CN ore dock located in the Duluth harbor. The dock is the last operable one in Duluth. Under the dock is trackage used by CN, CP, BNSF and UP to access Duluth's harbor. In the lower foreground, a single track trestle connects CN to the waterfront. Across the waterway is the Midwest Energy Center coal unloading facility in Superior, WI, used by BNSF and UP for transfer of coal the lake boats.