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Download the 2013 Sale Catalog

[1.4 MB PDF]
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The Geological Society of America publishes a wide range of peer-reviewed scholarly works in the form of journals, books, field guides, maps, and charts. The GSA Bookstore also carries educational materials, plus a variety of field tools.
 EarthCache
Mica (100+) EarthCache Discovery Award Tag
 MemberNon-Member
 $4.99$4.99
 
Product Code: ECDAM
These trackable (through Geocaching.com) geo-tags can be used to display your EarthCache Discovery Award level or send them on trips of discovery and track their journeys. They are all 1.25 inch in diameter with a small chain.