Complimentary water provided by USDA. It was really appreciated. There was a note that said you could cache water there and that would be a really good idea in summer. There were a few cattle watering pools you might use if you were in a pinch and had a filter. I only saw one, a windmill type that was pumping, the water came out cool and clear and was probably drinkable as is. Most of the others had a lot of algae.