Groundspeak Portal

I'm interested in starting a group to log as many Masonic cornerstones as possible. There are tens of thousands out there, but I'm just not sure how to get started. The kid and I went out and collected the waymarks and photos for three today, but are now stymied. I began a group called 'Masonic Cornerstones'' but I can't seem to figure out how ...

 I recently stumbled upon a large tree with hundreds of old carvings in the smooth bark - initials, symbols, words, etc. I have a couple good hi-res photos of it, and (of course) it occurs that there must be others like it scattered around - perhaps some that YOU remember marking? The category would recognize the carvings for quality, ...