CachingTree is a project attempting to map the Geocaching family tree.
CachingTree is a worldwide project that maps the global spread of geocaching in a family tree. Organized by ethicalhacker, the site produces a pedigree chart using information gathered by geocachers. When a geocacher visits the site, they enter in their geocaching name and the name of the geocacher/organization that got them into geocaching. The site is closing in on 2,000 entries (as of June 16th, 2010).