Google San Ann Cyclery and they have a couple of good maps to look at for riding around San Antonio. I tend to end up driving them more than riding, but they can be lots of fun. SThere was a lot less road traffic then too. If you get a chance to go down the Blanton Trilby Road section, I would highly recommend it. Most of the the time, vehicle traffic is not too bad and the hills are pretty nice.

I've only driven part of it, but if you get an opportunity, see if you can find the Horrible Hundred map out of Clermont. Talk about your hills.