Distance from
Morpeth
- 0.0 - Hwy 3 Junction (Morpeth)
- 13.5 - Hwy 401 Junction (To Windsor)
- 23.3 - Hwy 2 Junction (Thamesville)
- 43.4 - Hwy 78 Junction (Dresden)
- 70.6 - Hwy 80 Junction (Oil Springs)
- 78.7 - Lambton Road 4 Junction (Petrolia)
- 89.6 - Hwy 7 Junction (To Sarnia)
- 90.7 - Hwy 402 West Junction (To Sarnia)
- 100.0 - Hwy 402 East Junction (Current South Terminus of Hwy 21*)
- 112.0 - John Street Junction (Forest)
- 120.8 - Lambton Road 7 Junction (Lakeshore Road)
- 130.8 - Hwy 79 Junction (To Thedford)
- 145.9 - Hwy 81 Junction (Grand Bend)
- 149.0 - Hwy 83 Junction (To Exeter)
- 158.3 - Hwy 84 Junction (St. Joseph)
- 174.3 - Huron Road 3 Junction (Bayfield)
- 193.7 - Hwy 8 Junction (Goderich)
- 198.4 - Huron Road 25 Junction (To Blyth)
- 228.3 - Hwy 86 Junction (To Wingham)
- 245.1 - Hwy 9 Junction (Kincardine)
- 257.7 - Bruce Road 15 West Junction (Tiverton)
- 263.5 - Bruce Road 20 Junction (To Teeswater)
- 280.4 - Barnes Avenue (Port Elgin)
- 286.2 - Bruce Road 3 (To Walkerton)
- 307.3 - Bruce Road 10 (To Chesley)
- 310.3 - Former Hwy 6 North (To Hepworth)
- 321.9 - Hwy 6 North (Formerly Hwy 70)
- 327.0 - Hwy 10 & Hwy 26 Junction (North Terminus of Hwy 21*)
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Distance from
Owen Sound
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