Pioneer Historic Byway
China Hat Geological Site, ID

China Hat and China Cap are rhyolite domes that formed around older lava flows. There are many faults located in the area which have had a part in forming these landforms as well as multiple "grabens." "Graben" is the German word for "ditch" or "trench." What the traveler sees is depressions created on the earth's surface when blocks of crust drop down. Stop at China Hat for a picnic and a deep exploration of your surroundings.