Great Southern Highway Western Australia
The Great Southern Highway at Pingelly, 2014
Map of south-west Western Australia with Great Southern Highway highlighted in red
General information
Type	Highway
Length	374 km (232 mi)
Route number(s)	State Route 120 (York – Cranbrook)
Major junctions
North end	Great Eastern Highway (National Highway 94), The Lakes
	Northam–York Road (State Route 120) Westdale Road Brookton–Corrigin Road (State Route 40) Brookton Highway (State Route 40) Wagin-Dumbleyung Road (State Route 107) Arthur Road (State Route 107)
South end	Albany Highway (State Route 30), Cranbrook
Location(s)
Major settlements	York, Beverley, Brookton, Narrogin, Wagin, Katanning
Highway system
Highways in Australia National Highway • Freeways in Australia Highways in Western Australia

Great Southern Highway is a highway in the southern Wheatbelt region of Western Australia, starting from Great Eastern Highway at The Lakes, 50 km (31 mi) from Perth, and ending at Albany Highway near Cranbrook. It is the primary thoroughfare for this part of Western Australia and runs parallel with the Perth–Albany railway for its entire length. It is signed as State Route 120 from York to Cranbrook, and was first named in 1949,^[1] although it was built well before that time.

The highway initially travels east to the historic town of York, before following the Avon Valley and the railway roughly southwards until Narrogin. The highway then runs parallel with Albany Highway at a distance of about 30 km (19 mi) through Wagin and Katanning before curving to approach Albany Highway where it ends 4 km (2.5 mi) past Cranbrook. Many of the towns along this highway have prominent grain silos, and Narrogin, Wagin and Katanning have remained important population centres sustained by agriculture and its supporting industries.

Towns on this highway include:

• The Lakes
• York
• Beverley
• Brookton
• Pingelly
• Popanyinning
• Cuballing
• Narrogin
• Highbury
• Wagin
• Woodanilling
• Katanning
• Broomehill
• Tambellup
• Cranbrook

• Media related to Great Southern Highway at Wikimedia Commons
• Highways in Australia
• List of highways in Western Australia

v t e Road infrastructure in Western Australia
Freeways	Graham Farmer Freeway Kwinana Freeway Mitchell Freeway
Metropolitan highways	Albany Highway Brookton Highway Canning Highway Great Eastern Highway (Bypass) Great Northern Highway Leach Highway Reid Highway Roe Highway South Western Highway Stirling Highway Tonkin Highway West Coast Highway
Highways and major roads	Albany Highway Brand Highway Brockman Highway Brookton Highway Bussell Highway Coalfields Road Coolgardie–Esperance Highway Dampier Highway Derby Highway Eyre Highway Forrest Highway Geraldton–Mount Magnet Road Goldfields Highway Great Eastern Highway Great Northern Highway Great Southern Highway Indian Ocean Drive Mandjoogoordap Drive Manuwarra Red Dog Highway Muirs Highway North West Coastal Highway Old Coast Road Robertson Drive South Coast Highway South Western Highway Vasse Highway Victoria Highway
Outback tracks	Anne Beadell Highway Buntine Highway Canning Stock Route Cape Leveque Road Connie Sue Highway Duncan Road Gary Highway Gary Junction Road Gibb River Road Great Central Road Gunbarrel Highway Kalumburu Road Sandy Blight Junction Road Talawana Track Tanami Road
Lists	Highways Major roads Gascoyne Goldfields–Esperance Great Southern Kimberley Mid West Perth Pilbara South West Wheatbelt Road routes Tourist Drives

v t e Road routes in Western Australia
State Route 120 Northam–Toodyay Road Northam York Road Great Southern Highway
National Highways	1 94 95
National Routes	1 Alt 94
State Routes	2 3 4 5 6 7 8 10 12 13 14 18 19 20 21 22 26 27 30 Alt 30 31 36 40 41 50 51 52 53 55 56 60 61 64 65 66 71 72 75 76 77 78 81 82 83 84 85 87 102 104 107 115 116 120 123 136 138 139
Tourist Drives	200 201 202 203 204 205 206 207 250 251 252 254 255 256 257 258 259 350 351 352 353 354 355 356 357 358 359 360
List of road routes in Western Australia