The sport of <a href="https://en.wikipedia.org/wiki/Geocaching" id="mwASU" rel="mw:WikiLink" title="Geocaching">geocaching</a> begins, with the first cache placed and the coordinates from a <a href="https://en.wikipedia.org/wiki/Global_Positioning_System" id="mwASY" rel="mw:WikiLink" title="Global Positioning System">GPS</a> posted on <a href="https://en.wikipedia.org/wiki/Usenet" id="mwASc" rel="mw:WikiLink" title="Usenet">Usenet</a>.