There are many species of trout in North America.
Brook, brown, lake trout, rainbow, bull trout, Dolly Varden, cutthroat (there are numerous species and subspecies) and if you include salmon, Atlantic salmon plus the are five species of Pacific salmon (king, chum, sockeye, pink and coho), grayling, whitefish. etc.
The brown trout is the only one not native to North America.
If you want to read more about trout go to the library and get the book, "Trout and Salmon of North America" by Robert Behnke.
ClearCreek