The northern part of the range, north of Mount Rainier, is known as the North Cascades.
IT IS extremely rugged, with many of the lesser peaks steep and glaciated.
The climate east of the Cascades is markedly different, a continental climate of cold, snowy winters and warm, dry summers.
the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks