Cascade range is like a long chain of mountains that stretches from Northern California, all the way up to British Columbia in Canada. Imagine a really long line of tall, pointy hills and mountains that's sort of like a giant's castle wall. The mountains are formed by volcanoes that erupted a long time ago and left behind rocky debris that piled high over time.
This long chain of mountains is called the Cascade Range and it's famous for its snowy peak called Mount Rainier, located in Washington State. The mountains in this range are very important because they provide lots of resources for people, like water for drinking and farming, and trees for building houses and making furniture.
But living near the Cascade Range can also be dangerous because the volcanoes can still be active and erupt, causing lots of damage and danger to people and their homes. So, while the Cascade Range is a beautiful and important part of nature, it's important to always be prepared for any potential dangers that might come with it.