Complex sentence: Miwok, Monos and Shoshonean-speaking tribes visited the area to trade; one major trading route went over Mono Pass and through Bloody Canyon to Mono Lake in Eastern California.
Split into simpler sentences: Miwok, Monos and Shoshonean-speaking tribes visited the area to trade. A major trading route went over Mono Pass and through Bloody Canyon to Mono Lake in Eastern California.