There is a yahoo group in Flower Mound: http://groups.yahoo.com/group/Charlotte-Mason-Flower-Mound-TX/
They meet monthly and also have park days, game nights and even a nature study outing at a nearby nature preserve, although the outdoor stuff is on-hold for the summer.
There is CM McKinney on Facebook: https://www.facebook.com/groups/362971203772387/
They meet monthly (I think) to discuss a book about homeschooling, CM, education, etc.
Sadly, I haven’t had the pleasure of going to either yet. 
I hope your move goes smoothly. Let me know if you need more information on resources in the area, and I’ll try to point you in the right direction.
-Alicia