Types of Rock Formations
Rock formations tell the story of our planet’s geological history. Understanding them is key to studying earth sciences.
Common Types
- Igneous: Formed from cooled magma.
- Sedimentary: Created from accumulated sediments.
A PLEISTOCENE JOURNEY
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This website is provided as an enhancement to the series of articles published in the Stevens County Times. Past articles will be become available for a modest fee, at a future date. Also, at a future date, the entire series will be available in booklet form.
Dive into the world of rock formations and their significance in local geology. A great resource for geology enthusiasts and students!

Rock formations tell the story of our planet’s geological history. Understanding them is key to studying earth sciences.