Mariposa, tuolumne, merced and what not counties

Why the strange title...well I live in the Don Pedro area which has a couple of lakes and is the cross roads of all those counties plus one or two more.  Any way, I was just wondering if anyone has a group or what not based in or near this area.  I am sure there must be something whether a solo home nudist looking for companions or a group of people I have not encountered.