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Welcome to the world of EarthCaches


The EarthCache Guidelines have been updated, effective January 1, 2013. All EarthCaches submitted on or after January 1, 2013, will be reviewed according to these updated guidelines. If you have questions about the updated EarthCache Guidelines, please contact

Come join us in 2013 for the 2nd International EarthCache Mega Event.


International EarthCache Day - October 13, 2013

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This is the place to find out more about Earthcaches - how to find them and how to create them!

EarthCaches are a type of geocache that are listed on They use additional guidelines when developed so that they provide a unique experience - a learning experience about Earth science!
The most exciting way to learn about the Earth and its processes is to get into the outdoors and experience it first-hand. Visiting an EarthCache site is a great outdoor activity the whole family can enjoy. The Geological Society of America (GSA) administers the listing of EarthCache sites around the world.

An EarthCache site is a special place that people can visit to learn about a unique geoscience feature or aspect of our Earth. Visitors to EarthCache sites can see how our planet has been shaped by geological processes, how we manage the resources and how scientists gather evidence to learn about the Earth.

To develop your own EarthCache Site and share its educational value with others, follow the simple EarthCache Guidelines and record the EarthCache site via the website.

As a part of geocaching — an adventure game for Global Positioning System (GPS) users to cache and find locations with actual hidden items — an EarthCache adventure is treasure hunting for the caches that the Earth has stored. EarthCache sites do not use stored containers; their treasure is the lessons people learn about our planet when they visit the site.

See the guidelines here.
See the current EarthCache listings here.

If you are a teacher, there are some additional resources to help you use EarthCaches as a learning tool in your classroom! Follow the side bar links. video of the "Pinnacle Peak's Columnar Basalt" EarthCache

" Presents" video about the EarthCache program

EarthCache Masters PinWant to be further rewarded for visiting EarthCache sites around our planet? Then why not become involved in the exciting EarthCache Masters program or the EarthCache Discovery Award Programs. It's free and easy to participate! Come join in the fun.


EarthCache Discovery Awards
We are very pleased to announce the launch of the EarthCache Discovery Awards. These Awards reward you for obtaining milestones in your EarthCache logged finds. There are fiv levels - quartz through to Diamond. It is free to register for these award. See here for more details.

Official EarthCache Banner
After a competition in the forums and over 600 EarthCachers voting, we now have a winner. The OfficialEarthCache Banner was created by jokergil and he will be sent a boxed set of Earthcache Master Geocoins. You can get the banner here

Official EarthCache Banner

Second place went to MJSDB and third place went to Fermentum. They will both receive a set of EarthCache masters coins.

EarthCache Masters Pins
Due to the continued rise in costs of postage, from the 25 August 2010 we will no longer be able to send out physical pins for EarthCache Master program for any level. Pins will be available for purchase through the EarthCache store.

Best 10 List
Which of the thousands ofEarthCaches do we consider the best in the world? This is a question that we decided was worth answering. In May 2009 six EarthCachers from around the world (USA, Canada, Portugal, Sweden, Australia) started the huge task of compiling the list of the best 10 EarthCaches. The team looked at the quality of the information, use of diagrams, logging requirements, references etc. While there will always be debate, the final list is :


Why not have a look at these are see if you can't meet what the team consideres to be 'best practice'. For those developers who own these wonderful EarthCaches....WELL DONE and many thanks for making EarthCaching a richer experience!

EarthCache Store - NOW OPEN

The EarthCache store is now open for business. Buy a T-shrit, cap, pin or bumber sticker. More items are coming, so make sure you check in to see the fun way you can let the world know that you love EarthCaching. Click on the EarthCache Store link on the left hand side navigation bar.

If you have general questions about EarthCaching, we suggest you read through all these pages carefully, then post your general question in these forums.

If you need to contact the EarthCache team about a specific EarthCache issue, please click on this email link. We will respond to your request as soon as possible.If you are asking about a specific EarthCache listing, please use the GC code in the subject line of your email.


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