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.
Where The Trails Take You Photography 
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