Zephyr Bar Where shiny stainless-steel Zephyrs once traveled through on the busy route between Chicago and the Twin Cities, Burlington Northern Expediter (BN’s monicker for new 2-person crew intermodal trains) No. 42 cruises by the now empty “Zephyr Bar” across the street from the depot at Prairie du Chien, Wisconsin, on a rainy May 7, 1994.