The ships pull up on the right or left and trucks rumble overhead and dump the ore in bins. Then the dock dump the bins into the ship. They can dump any bin depending on where they want to distribute the weight. I don't know who long it takes but I know what ships work out of there so I can watch them and when I see one heading there I can plan the four hour drive.
Of course this trip will have some bike riding too.
Maybe as soon as the snow melts.