I first mentioned earthcaches in the context of my trip to Banff last month. Run by the Geological Society of America, the earthcache program encourages people to visit sites of geological significance and learn something about them. I visited three in the Banff area.
Soon afterwards, I learned about the Earthcache Masters program. By visiting three earthcaches in two states or countries, I could qualify as a "Bronze Earthcache Master". Since all of my finds were in Canada, I needed to visit one some place else. So after Christina and I visited one near Laurel a week or two ago, I sent my information in. Today in the mail I received my very own bronze earthcache master pin.
To reach silver, I need to visit a couple more and involve at least one more state/country. That's the easy part. The hard part is that I would have to place an earthcache myself. That would involve finding an interesting geological feature, writing it up, and perhaps most challengingly, getting permission from the park or wherever it ends up. I haven't decided whether I'm up for that; I guess I'll try visiting the next two first and see how that goes.