Lac-Témiscouata National Park (French: Parc national du Lac-Témiscouata, pronounced [paʁk nɑsjɔnal dy lak temiskwata]) is a provincial park located in Quebec, Canada south of the Saint Lawrence River, near the border with New Brunswick.

In terms of wildlife, the park is home to the largest white-tailed deer population in the Lower St. Lawrence.

Finally, in terms of culture, the park boasts a high concentration of Amerindian archaeological sites, among the oldest in Quebec.

The Taconic Orogeny occurred when the Iapetus Ocean subducted beneath the Laurentia continent during the Ordovician Period, some 460 million years ago.

The rocks in the park range in age from Cambrian to Devonian, and are composed mainly of limestone and sandstone.

The glaciers left deposits of tillite 25 cm to one metre thick, helping to flatten the land and deepen the valleys.

The Touladi River valley has an average altitude of 160 m.[6] The park's territory is criss-crossed by numerous waterways and bodies of water.

Including Lake Témiscouata, there are 19 bodies of water in the park, with a total surface area of 84 ha.

The territory is also criss-crossed by 14 streams, including Sutherland Creek, whose discharge cascades down the Squatec-Cabano syncline in an impressive waterfall.

The park's hydrographic network is lattice-like, with streams running through the Appalachian fold and occupying geological fracture zones.

The forest occupies 93% of the park's territory and falls within the yellow birch fir bioclimatic domain.

In terms of vascular flora, the park's territory includes 397 taxa, according to the most recently completed inventory.

However, 38.9% of taxa belong to the temperate domain, reflecting the milder climate characteristic of the park's valleys.

[8] Other predators include red fox (Vulpes vulpes), black bear (Ursus américanus), ermine (Mustela herminea), American mink (Neovison vison), American marten (Martes americana), fisher (Martes pennanti), river otter (Lontra canadensis) and Canadian lynx (Lynx canadensis).

[7] Small mammals include the Snowshoe Hare (Lepus americanus), Red Squirrel (Tamiasciurus hudsonicus), Striped Chipmunk (Tamias striatus), Northern Flying Squirrel (Glaucomys volans), Canadian Beaver (Castor canadensis), Muskrat (Ondatra zibethicus) and American Porcupine (Erethizon dorsatum).

There are also several birds of prey: osprey, bald eagle, northern harrier, red-tailed hawk, common buzzard and American kestrel.