<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">2014-08-14 13:35 GMT+02:00 John Packer <span dir="ltr"><<a href="mailto:john.packer7@gmail.com" target="_blank">john.packer7@gmail.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>One question.<br>How would people map a cave?<br></div>As far as I know, GPSes don't really work underground, and obviously there is no sattelite imagery for them.<br>
</div>I imagine that's why there is no scheme right now.<br></div></blockquote><div><br></div><div> 2D Public Domain map, imported as layer to JOSM using PicLayer, oriented using multiple cave entrances. Cave entrances were<br>
</div><div>located with GPS and/or visible on aerial images.<br></div></div></div></div>