AMP: 3 Location: Mountain Rd and Granby Rd, Granby No signage as SR 539 begins. 539 is an interesting if odd connection between CT 20 and 189 – I’m not sure why it is on the State Road system and not the primary system. AMP: 1 Location: Mountain Rd and Old Skinner Rd, Hartland About … Continue reading Connecticut State Road 539, CT 189 to CT 20