Water problem in dry Texas panhandle

I live in the panhandle of Texas and have just got all my gear to go on my first backpacking trip, although I have tons of day hiking experience. Since there is pretty much nothing around here but canyon systems I am wondering how I could carry or get water in the backcountry. Since it will be very hot a surplus of water is what I'll need. So do you cache water, and if so how does one go about doing so? Finding water on the trail is out of the question obviously, so what's the answer? Thank guys.