Location: US-380 and FM 578, Young Cty Reassurance shield as 578 joins 380. Location: US-380 and FM 578, Young Cty About a mile later, 578 will split to head north. Location: US-380 and FM 578, Young Cty Follow 578 north towards SH 79. Location: US-380 and FM 578, Young Cty Turn right for 578 north. … Continue reading U.S. Route 380, TX-FM578 to TX-FM578