If you cannot get onto the spring creeks, another option is the head of the Clark Fork in Warm Springs. The view is a disaster, the river is small, and probably crowded, but there are some very big fish in there. It is also about 30 seconds from the exit, if you are anything like me, when I am driving, I do not like to take long detours, and this would fit the bill. If you have a whole day to fish, and are not looking to wet a line while driving home, then I would disregard this suggestion.