The Texas Sheep Dog Association (TSDA) was founded in 1963 at San Saba, Texas by a small group of Border Collie enthusiasts.

The goals of TSDA include promoting sheep and cattle dog trials in an organized manner, providing information on training stockdogs, exhibitions and resources for working dog owners and handlers in Texas. TSDA hosts an annual Texas Championship trial to showcase these amazing handler/dog teams who represent the history of why herding dogs are invaluable to Texas ranchers.