Complex sentence: Many sources incorrectly identify the current Discovery Bay area as the location of Port Discovery; however, Port Discovery was located at what today is called Mill Point, a location several miles further west along US101, at what today is called Broders Road.
Split into simpler sentences: Many sources incorrectly identify the current Discovery Bay community as the location of Port Discovery; however, Port Discovery was several miles away, at Mill Point. This is several miles further west along US101, near what today is called Broders Road.