Did you know that the largest Magnolia tree in Arkansas resides in Texarkana? This 'Arkansas Champion Tree' is located in Texarkana Arkansas. It is on the corner of 46th Street and County Avenue. So for us Texarkana folks it is across from Elchico restaurant and on the lawn of the Chapel Ridge Apartment complex. Wes Spicher Townsquare media I took this picture from the parking lot and as you can see this tree is huge. No, really it is huge. Wes Spicher Townsquare media This picture shows the unbelievable size of the trunk of this Magnolia tree. So according to the 'Arkansas Champion Tree List,' the circumference or the distance around the trunk is 219 inches.