The short answer would be a 9 foot 6 weight. But who needs a short answer when we are talking about fly rods, and everyone knows there is no way to cover all your bases with just one rod. So let's dig a little deeper and figure out what fly rod would cover the most water for the average Central Texas angler.
The 9 foot 6 weight rod would be my first choice for a few reasons. I fish for bass on the Colorado River more than any other local water, and a 6 weight rod allows me to cast larger poppers and streamers that are sometimes required to to catch the larger Colorado River bass. The same rod would work well for nymphing on the Guadalupe River. The 9 foot length is perfect for mending and a 6 weight will make it easy to cast the multi-fly strike indicator set ups.
If I had to chose another rod it would be an 8.5 or 9 foot 5 weight. The 5 may be a better choice if I spent more time on the Llano River or the San Marcos River. A 5 weight rod will be lighter and the 8.5 foot length will make it a little easier to cast in tight situations. In the next post I will discuss the most appropriate rods on a river by river basis.