I have a Coues Whitetail hunt this year in the high desert here in Arizona. The closest water source is 5 miles down the trail from where I intend on hunting. I'm packing in 3 gallons of water that I'll stash and mark on my gps this weekend to make sure water is there when I need it. I have a 3 liter water bladder and a stainless steel klean kanteen that I care on my. I usually don't hike around with the water bladder completely full to keep the weight down. I usually drink between 1.5-3 liters of water a day depending on the amount of hiking and temperatures. I also carry a Katadyn Hiker for emergencies. Standing pools of water can usually be found in canyon bottoms if necessary.