My husband and I are horse people, and I wish I had found these venues before we had our wedding (though I loved the location/look of our venue:)
http://www.chukkarfarm.com/weddings.html - Chukkar Farm, Alpharetta, Georgia
http://paradisearabians.com - Paradise Arabians, Dalton, Georgia
We did visit R-Ranch in Dahlonega, but we were NOT impressed with the other facilities on site nor the fact that owners/members could randomly walk through our reception, etc.