TNRHA | Affiliate of the NRHA. The Tennessee Reining Horse Association (TNRHA) was founded in 2003 as an affiliate of NRHA. Since its inception it has built a reputation for quality reining horse shows and clinics.
Heart of Dixie Reining Horse Association. Heart of Dixie Reining Horse Association is a Georgia based affiliate of the National Reining Horse Association dedicated to the promotion of the reining horse.