U.S. Route 1, MD-543 to US-1 Bus

Location: Bel Air Byp and Fountain Green Rd, Harford Cty

Reassurance shield after the 543 junction.

Location: Bel Air Byp and Conowingo Rd, Harford Cty

Just after that, US 1 Business rejoins. Turn left for 1 Business back south.

 N to MD-136, S to MD-23

 S to MD-543

 N to US-1 Bus, S to MD-22