Yamaska National Park (French: Parc national de la Yamaska) is a provincial park centered around the man-made Choiniere Reservoir. It is located in the municipalities of Roxton Pond and Saint-Joachim-de-Shefford in La Haute-Yamaska Regional County Municipality, just northeast of Granby, Quebec. Its undulating hilly landscape is supported by slate and sandstone bedrock. The main soil is a stony sandy loam podzol which has been mapped as the Racine series—one of the most acidic soils in the area.
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