 In Hartland, Route 20 continues northeastward to meet Route 181, then turns north to curve around the Barkhamsted Reservoir.East of the reservoir, it turns southeast to meet Route 179 and continues into Granby.In Granby, Route 20 continues southeastward to meet Route 219, then turns eastward to briefly overlap Route 189 and cross US 202 and Route 10 before leaving Route 189 and continuing into East Granby.