Perlite-nps-02316.jpg
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Summary
| Description | Perlite boulders with Fireweed ( Chamerion angustifolium ) |
| Date | |
| Source | U.S. National Park Service, Yellowstone Slide Files, Geology Images/Volcanic - Igneous , #02316 |
| Author | RG Johnsson |
Licensing
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This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government , such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information. |
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