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Route 406 begins at an intersection with Route 1 (Trans-Canada Highway) in Doyles and heads west along the banks of the Codroy River to pass through Upper Ferry, where it has an intersection with a local road leading to Searston and Loch Lomond, as well as cross a bridge over the river. The highway makes a sharp left at an intersection with a local road leading to O'Regan's to follow the northern banks of the river westward through Great Codroy and Millville, where it has an intersection with Route 407 (St. Andrew's-Searston Road). Route 406 begins fill the coastline of the Gulf of St. Lawrence as it heads northwest through Woodville, Codroy, and the community of Cape Anguille, with provincial maintenance coming to shortly after meeting a road to the point of Cape Anguille and the Cape Anguille Lighthouse.
End of provincial maintenance; western terminus; road continues north as Codroy Road (in gravel)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
Attractions along Route 406
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