Complex sentence: Because the Albemarle County Seat was moved it became difficult for citizens in the Fluvanna area because they would now have to trek over the Southwest Mountains to reach the new Albemarle County Seat at Charlottesville.
Split into simpler sentences: Because the Albemarle County Seat was moved it became difficult for citizens in the Fluvanna area. They would now have to trek over the Southwest Mountains to reach the new Albemarle County Seat at Charlottesville.