Exploring the building stones of downtown Seattle

Exploring the building stones of downtown Seattle
Here is an example of a rock identification exercise in an urban environment.

File 22165 is a 34kB Acrobat (PDF)
Uploaded: May25 10
Last Modified: 2010-05-25 11:41:39
https://serc.carleton.edu/download/files/22165/exploring_building_stones_down.pdf

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