The Pacific Northwest is home to some truly amazing geology. From the high desert to the Cascades Range to the ocean floor, there are rocks galore—each with its own story to tell about Earth's deepest past. In honor of the anniversary of the Mount St. Helens eruption on May 18, we invite you to explore the region's fascinating geology through games, videos, and more!   

	VIDEO Rocks on the Road Join us on a recent visit to Jewett Elementary School, where a class of fifth graders had a rockin' good time learning about Pacific Northwest geology.
	ACTIVITY Rock Cycle Game Rocks are always changing, thanks to a set of processes we call the rock cycle. There are three kinds of rocks—igneous, metamorphic, and sedimentary—and they're all part of a never ending cycle that recycles old rocks into new ones. Play the rock cycle game to see it all in action!
	ACTIVITY Crayon Rock Cycle Take crayon "rocks" on a journey through the rock cycle and discover how rocks change over millions of years.
	VIDEOS Roadside Geology of Oregon Join University of Oregon geologist Marli Miller for a video "road trip" to Oregon's lava plateaus, mountains, and more.
	ACTIVITY Rock Hunt Gather rocks from around your home. Try sorting them in different ways—by size, color, texture, or shape. How many kinds of rocks can you find? Can you identify any of them?
	EXPLORE Rocks and Minerals: Everyday Uses From your kitchen counter to your computer, you probably use rocks and minerals every day! Learn more about the many roles that rocks play in our day-to-day lives.
	ACTIVITY Rock Recipes What are the ingredients of a rock? Minerals! Each and every rock is made up of minerals in different combinations. Follow the recipes to "make" a few rocks of your own.
	LIVE WEBCAM Mount St. Helens VolcanoCams View Mount St. Helens from right where you are! The VolcanoCams have been providing nearly real-time images of the mountain since the late 1990s.