I use a Platypus 2L dirty bag with a gravity filter. I also have the Aquamira drops as backup. I use the MSR 6L Drom Lite bag for the camp, and carry 3 liters hunting. I will bring the filter and refill my water when the opportunity arises.
Much like everyone else Katadyn Hiker Pro pump with an inline attachment for my water bladder so I don't have to remove it from the pack.
Pending in CO but you should hopefully be able to find water easy to pump/filter out. Last year I ended up saying screw it and carrying LESS water in my bladder because I hiked along a stream. Figured I would save some weight and just filter some more if needed.