re: Lewis and Harks Montana Exp of 2012
Where are you flyin in/out of?
You can always fly into Missoula, and out of Bozeman/Great Falls for example saves some back tracking.
Lots of rivers are easily wade fished
Madison has some very easy access.
A lot of the bigger rivers are better drifted.. but you can easily get in through public access
Don't forget Yellowstone Park, or up into Glacier.
Paradise Valley Spring Creeks are great, $100 a day access
It's all too easy to spend all your time moving to the next spot. You'll need to narrow donw things a little.