Located approximately 80 km north of Trois-Rivières, it is bordered to the east by Portneuf Wildlife Reserve.

This entry is accessible via the Road 155 and taking the path of Carignan (Lac-à-Beauce [fr]), south of La Tuque.

Visitors can also access the Zec territory in which seaplanes landing is possible on the lakes Masketsi, Roberge, the Bear and Hackett.

In order to accommodate its sailors and vacationers, the zec offers a rental service for boats, motor and sale of various items.

Several utilities are available outside the zec in villages Hervey-Jonction, Lac-aux-Sables and Sainte-Thècle as convenience stores, gas stations, grocery stores, pharmacies, car garages... CLSC Saint-Tite is located 26 km from the main entrance of zecTawachiche.

Followers of observation of nature will love the area for aquatic birds, located in a wetland on the "Rivière à l'eau morte" (Dead Water River).

Since 2009, climbers frequent the granite cliff overlooking a bog and the western shore of Lake Therrien.

Cape Tawachiche inherited a Native American legend that transcends in the names of the 5 sectors of the cliff: Tomahawk (sections Shaman, Grand Duke, Totem), Indian Summer, Attimakekw, and Wometaci Maskwaaskwaaskwa.

Therrien Lake is located 15 minutes drive from the entrance of the zec, taking the path Tawachiche East.