[okie01]

I can assure you that while it makes for a romantic picture, Texans are not driving herds of cattle 50 miles to a river on the border.

If you've got a ranch on the river, you're watering them from the river, bub. You're not going to drive them fifty miles in the other direction.

[SuzyQue]

No, you have stock tanks. (I actually am familiar with much of the border, so I’m not speculating).