It’s time to check out this month’s quiz and trivia piece I wrote for the National Parks Traveler. How much *do* you know about the units of the National Park System?
One of the questions in the quiz – actually, the very first question – deals with the images (one of them, anyway) you see above of the large dacite boulder seen in the Devastated Area of Lassen Volcanic National Park. What are those round-ish things you see within the dacite bouler? Btw, dacite is an igneous rock that forms from viscous (thick, slow-flowing) lava. Those small white inclusions you see are bits of quartz.
To take the quiz and read the trivia, click on either image above.
Copyright Rebecca L. Latson, all rights reserved.
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