names of geocaching organizations in Geocaching topics Posted July 27, 2004 I need to correct myself. I got to thinking about it and looked to check. The OzMtnGeocachers group first post was about three months before the ArkGeo first post, so they came first. ArkMo, however, came about 8 and a half months later, so I right there. Anyway, we've been around since January 2003.