Riddoch Highway

Riddoch Highway

The Riddoch Highway near Padthaway
Map
Riddoch Highway is located in South Australia
North end
North end
South end
South end
Coordinates
General information
TypeHighway
Length239 km (149 mi)[1]
Route number(s)
  • A66 (1998–present)
    (Keith–Mount Gambier)
  • B66 (1998–present)
    (Mount Gambier–Port MacDonnell)
Major junctions
North end Dukes Highway
Keith, South Australia
 
South endSea Parade
Port MacDonnell, South Australia
Location(s)
RegionLimestone Coast[2]
Major settlementsPadthaway, Naracoorte, Coonawarra, Penola, Tarpeena, Mount Gambier
Highway system
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Riddoch Highway is a rural highway in south-eastern South Australia, designated as route A66 between Keith and Mount Gambier, with the remainder between Mount Gambier and Port MacDonnell designated as route B66. It is named after John Riddoch, the first white settler landholder and vigneron in Coonawarra.

  1. ^ "Riddoch Highway" (Map). Google Maps. Retrieved 6 June 2022.
  2. ^ "Location SA Map viewer with regional layers". Government of South Australia. Retrieved 16 June 2022.