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

🇺🇸 N77585 - Boeing 737MAX 9 - United Airlines UAL2701/UA2701, Bozeman Yellowstone (BZN) to Nashville (BNA) - 4.4 mi away @ 35450 ft, heading SE at 612 mph. Spotted 5x before. [02:29:42 PM CST] #AA7F28 #N77585 #B39M #UNITED #UAL2701 #UA2701 #ADSB #ADSBbot