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It is rare that everything works out so well. Nice that you have a good connection with the fire department! So, off grid means there aren't any power lines to your place either. Guessing maybe solar to supply electricity?
Not a lot of competition for boulders - but if you want or need them...
I was pretty darn excited here a couple of years ago when the construction folks up the road from here dug one up. Mine might be more like "a big rock" (about 3 feet around). They ended up giving and tractoring it over to my place. Had them drop it out by the street where the "backflow preventer" was installed about 15 years ago. Thing has been smashed flat by idiot drivers several times recently. Now days, my big rock seems to collect paint chips...
Make me smile when I see a new color.