Which of these statements is NOT TRUE concerning the Superior Boreal Forest: Subarctic plants grow here because the elevation and cooling effect of Lake Superior provide the proper site conditions for their survival. It has some of the highest elevations in Ontario Typical boreal forest birds such as Canada Jay and Boreal Chickadee are found here. Pukaskwa National Park has spectacular geology as well as disjunct populations of northern plants Isostatic rebound caused the water that once flowed south from Lake Superior into the Atlantic watershed to now flow north into the Arctic watershed.