| Route 257 | ||||
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| Route information | ||||
| Length: | 85.0 km (52.8 mi) | |||
| Major junctions | ||||
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| North end: |
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| Location | ||||
| Major cities: | Weedon, Scotstown | |||
| Highway system | ||||
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Route 257 is a north-south highway on the south shore of the St. Lawrence River, in the Eastern Townships region of Quebec. Its northern terminus is in Saint-Adrien at a junction with Route 216, and its southern terminus is the Pittsburg-Chartierville Border Crossing in New Hampshire, after which it becomes US 3.