I would avoid the lakes on the Missouri, between Bozeman and Great Falls. I really don't like them. I also don't like Ennis Lake.
Actually most of the nice lakes are in western Montana, vrs central or eastern.
Most of the lakes I really like are over in the Swan and Seale (sp) Valleys in the North western part of the state. Unfortunately most of them are also dry/no-hook-ups. Although there are dump stations..
2008 F350SD V10 with an 2012 Arctic Fox 29-5E When someone tells you to buy the same rig they own, listen, they might be right. When they tell you to buy a different rig then they own, really pay attention, they probably know something you don't.