New Brunswick and the rest of the Maritime Peninsula was covered by thick layers of ice during the last glacial period (the Wisconsinian glaciation). It cut U-shaped valleys in the Saint John and Nepisiguit River valleys and pushed granite boulders from the Miramichi highlands south and east, leaving them as erratics when the ice receded at the end of the Wisconsin glaciation, along with deposits such as the eskers between Woodstock and St George, which are today sources of sand and gravel.
New Brunswick and the rest of the Maritime Peninsula was covered by thick layers of ice during the last glacial period (the Wisconsinian glaciation) It cut U-shaped valleys in the Saint John and Nepisiguit River valleys and pushed granite boulders from the Miramichi highlands south and east leaving them as erratics when the ice receded at the end of the Wisconsin glaciation along with deposits such as the eskers between Woodstock and St George which are today sources of sand and gravel