Complex Crossings.
A pair of light CSX locomotives - 5295 and 792 - are seen running elephant-style up the Northern Running Track at CP Marion. In a few hundred feet here, the track crosses under the Pulaski Skyway approach (US 1-9), crosses St. Pauls Ave at grade, and under the Wittpenn Bridge approach, all before descending under the NJ Transit Morristown and Main Lines and entering Bergen Junction.
I had previously caught this pair running south on the National Docks Secondary, so they seem to have taken a scenic tour of the North Jersey shared assets territory!