Originally Posted by
sedges
I've been ultralite backpacking since before it was called that. Fifty pounds of water(6 gallons) is not a luxury when there is no water source for a week of traveling. My outfit is very minimal and light weight so that I CAN carry 10 days worth of food even when backpacking. I am also an addicted naturalist and tend to carry field guides, good binoculars(not compact) and maybe even a spotting scope if good birding areas are on the tour(Texas).
Your list =/= ultralight, then -- field guides & scopes etc.
And you really need 22L of water??? Whoa!
Sounds like a trailer would be ideal, since you could literally box it and mail it ahead to your next seriously arid leg of your trip to haul the water.