Re: Golden Trout
The Golden Trout in Wyoming came from California. I don't know about the Golden Trout in Montana. Wyoming has hatcheries for Golden Trout and it would not be a stretch for Montana to get them from Wyoming.
Most remote lakes that have Trout of any kind come form plantings. For years the High Sierra lakes were planted by pack horse. They the discovered that Trout could be planted by air drops from planes. At least that is how California did it in the 50's. Remote lakes are planted for the thousands of hikers who visit and fish there.
According to the Wyoming Game and Fish, their Golden Trout is also Oncorhynchus aguabonita which is the California Golden Trout.