The first glacial advances created today's landforms approximately 500,000 years ago.

The little ice age was a period of glacial advance that lasted a few centuries from about 1550 to 1860.

With this they can also tell about glacial advances.

The complex nature of glacial advance or retreat has been monitored in the last several decades.

The first and most severe of the known glacial advances in the area was caused by the Buffalo glaciation.

The glacial advance reached its maximum extent about 18,000 BP.

This was the last glacial advance that entered Michigan and covered only part of the upper peninsula.

There are minor glacial advances recorded on the mountain over the past 6,000 years.

The parent material of most prairie soil was deposited during the last glacial advance that began about 110,000 years ago.

With the end of the last glacial advance, the Columbia settled into its present course.