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

🇺🇸 N405LC - Lockheed L-100-30 Hercules - Lynden Air Cargo LYC571 - 3.6 mi away @ 20750 ft, heading NE at 458 mph. Spotted 3x before. [09:20:40 PM CST] #A4C031 #N405LC #C130 #LYNDEN #LYC571 #ADSB #ADSBbot