Location: US-380 and SH 289, Prosper Reassurance shield after the 289 junction. Location: US-380 and Teel Pkwy, Prosper Reassurance shield as we cross into Denton County. We’re still in the city of Prosper though. Location: US-380 and FM 423, Prosper A couple miles later, we’ll approach FM 423. Location: US-380 and FM 423, Prosper Turn … Continue reading U.S. Route 380, TX-289/TX-289 Bus to TX-FM423