The road measures 7.49 miles long and would take a car obeying speed limits 12 minutes to travel its length.
The B777 is a B Road and is located in the Zone 7 Highways Region.
This is a true long-distance route, journeying through numerous towns like Glengarnock, KILBIRNIE, Willowyard Industrial Estate, BEITH, Gateside, and Lugton.
The road passes through several counties, including Ayrshire and Arran, Renfrewshire, and Ayrshire and Arran.