Another idea, is to get that GPS and mark a bunch of locations in the general area of your grow and even outside of that. Have 1 of those 30 locations your grow. Only you will know which one it is, so if a LEO finds it it'll just look like a bunch of locations mapped out for "four wheeling trails". Catch my drift?
Ya got me thinking.. Or they could be geocache locations. Upload one of those maps to your GPS and there will be locations everywhere. That should confuse most people not familar with GPS's.
I would mark stuff that isn't so obvious, I would mark locations like "blueberry patches" etc. I actually have lot of berry patches marked.
BTW.. I was geocaching and I would be a good idea to verify that your grow isn't near a geocache.
I'm pretty stoked to get growing this year.. I got some autoflowering strains I wanna try, see if it will work.