Yup,

There are a few...I don't fly gliders, but if you go to this site:

http://www.coronarcclub.com

and e-mail the webmaster, there is a glider site just East of their field. They share frequency time with the slope guys...and join them as well.

Sheesh man, there are nothing but hills around here...you will find something, I'm sure.

Good Luck!!