I'm in my 50's too. But live in the huge megalopolis of southern CA. We are actually about 60 miles east of LA - but it is pretty much one continuous suburb now.
Bop on over to the Womens section and check out the ongoing posts, or maybe start a new one. There are lots of great companions there (not that the guys aren't great too - right Mike?), but I am sure you will fit right in.