The history of the Upper Potomac has been a rich one.The Colonial Period, however, has been somewhat neglected, primarily because the earliest records that relate to the Upper Potomac are not easily accessible.Volume One of Colonial Records of the Upper Potomac. . . is concerned with those records that provide information about this region from the earliest written sources in the 1600s up through 1744. It is a collection of documents and abstracts of records from a wide range of sources.