I’ve caught plenty of fish in big rivers. My all time high was landing 37 trout in a day, and hooking about 50. Most of the fish I catch are stocked fish. Maybe a few holdover fish, but they are ones from a hatchery and transplanted
I long to find and land small brookies in largely unknown waters.
So, I found this article helpful. It lists ten tips for catching wild trout. Enjoy reading it.
There are many, many “blue lines” on Massachusetts maps, and so, happy hunting.