Once you cross I-270, you’re in Florissant, where the mighty avenue will come to an end at New Halls Ferry Road. At West Florissant & Dunn Rd. was – above left – the former 270 Drive-In. Today it is Clocktower Place. Above right, Kmart has taken over the former Venture department store (opened 1971). This is also the beginning of faceless retail boxes, built quickly to try and keep pace with folks rushing every further north, until they ran out of places to leap frog to. That’s when they lept over the river into St. Charles County, leaving North St. Louis County behind.