Hi Sandy45 I'm in SA--

if you haven't already, try the Monday night mission ride out of Blue Star Brewery (18 miles, no drop, bring good lights this time of year). Leaves at 7:00pm sharp!

Also check out the SA branch of Ride Like a Girl- they might be able to help you meet some more mtn bike people http://www.saridelikeagirl.com/Home_Page.php
The coordinator/contact veronica is really great, and does both mtn & road rides, clinics, get-togethers, etc.

Happy riding!!