| Route 204 | ||||
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| Route information | ||||
| Maintained by Transports Québec | ||||
| Length: | 263.9 km (164.0 mi) | |||
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| Location | ||||
| Counties: | Le Granit / Beauce-Sartigan / Les Etchemins / Montmagny / L'Islet | |||
| Highway system | ||||
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Route 204 is a finite two-lane east/west highway on the south shore of the Saint Lawrence River in Quebec. It is one of the longest secondary highways in the province. Its eastern terminus is in Saint-Jean-Port-Joli at the junction of Route 132 and the western terminus is in Lac-Mégantic at the junction of Route 161. Although it is numbered as an east/west highway, the road follows a north/south course from Saint-Jean-Port-Joli to Saint-Pamphile, where it then follows a mostly southwest/northeast course until Saint-Georges, where after crossing the Chaudière River, follows it in a north/south course until the source of the Chaudiere in Megantic Lake, in Lac-Mégantic.