https://www.geosociety.org/GSA/fieldexp/EarthCache/guidelines/home.aspx 1. EarthCaches must provide an earth science lesson. 2. EarthCaches must be educational. They should provide accurate but non-technical explanations of what visitors will experience at the site. The cache page, including the description and logging tasks, must assume only a basic knowledge of geology. 3. EarthCaches must highlight a unique feature. EarthCaches that duplicate existing EarthCaches or related sites may be rejected. EarthCaches must ...
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