I checked out the Earthcache site sponsored by the Geological Society of America the other day. I learned they have a Earthcache Masters program. Here are the requirement for the Gold level:
Gold Earthcache Master
Visit and log twelve (12) or more Earthcaches in four (4) or more states/countries and have developed two (2) or more Earthcaches.
I have found the following Earthcaches:
11/11/2007 GCPTK9 Pillow Lava, Pillows Too Hard To Sleep O
11/05/2007 GC1772F Glendale Narrows
08/23/2007 GCPD2V Tufa Towers
07/07/2007 GC10YWK Virgin River Gorge Earthcache
07/05/2007 GCZ5HB Pygmy Mammoths of the Channel Islands NP
07/02/2007 GCZJMV Grimes Canyon Burnt Shale
06/01/2007 GC127EG Tar Pits Park
06/01/2007 GCZBY6 Morro Rock Earthcache
07/31/2006 GCQ7Z6 History in the Rocks Earthcache
06/30/2006 GCP80W San Onofre Breccia – Dana Point Earthcac
10/08/2005 GCPRZ0 Matilija Dam Removal
08/25/2005 GCPD3K La Conchita Landslides and also Wind Cave National Park and The Great Thistle Landslide.
I placed The La Brea Tar Pits in June 2005. It was one of the early Earthcaches. To qualify for the Gold Earthcache Master, I only need to place another Earthcache. I’m working on it now and hope to have it approved soon.
If you haven’t done any Earthcaches, there are great. Usually located in interested places, you will always learn a good geology lesson along the way.