This unique area was formed after the last ice age when the continental glacier melted leaving behind a large lake called Lake Warren.
22.
The bluffs were created during the last ice age when this region of the drift, the material left behind by retreating continental glaciers.
23.
Like the other Great Lakes, it was formed by melting ice as the continental glaciers retreated toward the end of the last ice age.
24.
They are believed to be formed either by continental glacier ( terminal moraine ) or by clay diapirs, or by the combination of both factors.
25.
The mammoth steppe was like a huge'inner court'that was surrounded on all sides by moisture-blocking features : massive continental glaciers, high mountains, and frozen seas.
26.
In the Dnieper glacial phase the northeastern part of Subcarpathia was occupied by a lobe of the European continental glacier, and the meltwaters temporarily ponded.
27.
Extensive evidence now shows that a number of periods of growth and retreat of continental glaciers occurred during the ice age, called glacials and [ nterglacials.
28.
As continental glaciers receded northward, a glacial moraine dammed the Connecticut River below Hartford, producing-long Lake Hitchcock with an arm extending northwest along the Westfield River.
29.
It is within the Driftless Area, a region of Illinois, Iowa, Minnesota, and Wisconsin that was not covered or ground down by the last continental glaciers.
30.
The creation of the Lake Superior basin reflects the erosive power of continental glaciers that advanced and retreated over Minnesota several times in the past 2 million years.
