Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N121UC - CESSNA 172R - EASTERN CINCINNATI AVIATION INC N121UC - 3.2 mi away @ 3475 ft, heading NNE at 136 mph. Spotted for first time! [04:40:19 PM CDT] #A0592E #N121UC #C72R #N121UC #Landing #ADSB #ADSBbot