I am from Bozeman, Montana. I mainly fish small streams. I hardly ever hit the big 3, the yellowstone, the gallatin, or the madison. This year i fished 25-35 new streams in southwest Montana, and 2 in north central Wyoming. I already have 10 new streams marked on google earth for the opening of fishing season.
However, thankfully, when montana fishing season closes, they leave open about 10% of the water threwout the state.
Thankfully the small stream i am fishing now, and is in a drainage that has every tributary open. This stream is around 10 miles long, these pictures are from the lower 3 miles. The upper 1/3 of the stream i have access from a landowner, and you can go there and easily catch double digit 10-15" browns. The middle section i lost access to fairly recently, because a developer bought out the rancher, and I had caught browns to 22" in that section.
The lower section i believe has large browns in it as well, however i have spent 2 days on it, and was skunked both days. I think the fish concentration is less due to the cattle finally taking their toll after abusing 6-7 miles of the stream. However if there are browns to 22"+ on it i will try and learn what it takes to catch the fish.
Here are some pictures
Here are some springs that feed the stream, these 2 are in series and some of these springs dump a fair bit of water into the spring as seen here.