The Newmarket Subdivision is operated by Metrolinx up to the end of track at mile 63.0. There is a large portion out of service until near Washago. ONR operates the remainer of the subdivision north of Washago. CN sold the Washago to North Bay portion to Ontario Northland in March 2026.
| T | Station Name | Mile |
|---|---|---|
| | | Parkdale JCT with Metrolinx Weston Sub |
3.0 |
| ‡ | Davenport Diamond – CPKC North Toronto Sub |
4.6 |
| | | Spicer | 9.2 |
| | | Downsview GO |
10.9 |
| ⅄ | Snider South | 12.1 |
| || | Steeles Snider South Wye |
12.9 |
| || | Snider North Snider North Connecting Track to CN York Sub |
13.7 |
| || | Welded Tube | 15.29 |
| Y | Concord | 16.3 |
| | | Rutherford GO |
16.7 |
| | | Maple GO |
18.3 |
| ⅄ | Teston | 18.5 |
| || | Argo and Alpha Lumber | 18.68 |
| Y | Kirby | 20.7 |
| | | King City GO |
22.7 |
| | | Chase | 29.2 |
| | | Aurora GO |
29.9 |
| | | Machell | 30.1 |
| | | Hot Box Detector | 30.2 |
| | | Newmarket GO |
34.2 |
| | | East Gwillimbury GO |
35.5 |
| | | Holland | 41.1 |
| | | Bradford GO |
41.5 |
| | | Lefroy Innisfil GO |
51.9 |
| | | Barrie South GO |
59.5 |
| | | Go Storage Facility | 62.2 |
| | | Allandale GO Connection to Barrie Collingwood Railway |
62.8 |
| ⊥ | End of Track | 63.0 |
| ↑Metrolinx Territory↑ | ||
| Portion of Subdivision Abandoned | ||
| ↓ONR Territory↓ | ||
| | | Washago JCT with CN Bala Sub |
98.9 |
| | | Gravenhurst | 112.2 |
| | | Hot Box Detector | 125.3 |
| | | Falkenburg Siding |
126.4 |
| | | Martins Siding |
141.5 |
| | | Huntsville | 146.2 |
| | | Hot Box Detector | 151.8 |
| | | Novar | 155.7 |
| | | Hot Box Detector | 184.3 |
| | | South River Siding |
188.8 |
| | | Trout Creek Siding |
200.7 |
| | | Hot Box Detector | 209.8 |
| | | Main Track Ends | 223.0 |
| Transfer Wye Connection to Ottawa Valley Railway |
225.7 | |
| End of Track | 226.44 | |
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