Complex sentence: Further south at Woodstock, the river leaves the Upper Valley and turns southeast away from the border region, eventually passing through New Brunswick's capital city Fredericton (where it becomes navigable), and the military town of Oromocto.
Split into simpler sentences: Further south at Woodstock, the river leaves the Upper Valley and turns southeast away from the border region. Eventually, it passes through New Brunswick's capital city Fredericton (where it becomes navigable), and the military town of Oromocto.