Uncoloured map of Maryland from Ogilby’s atlas of the Americas entitled “America: Being The Latest, And Most accurate Description Of The New World” that was first published in 1671. Based on the 1635 Lord Baltimore Map that charted the land grant issued by Charles I to George Calvert (Lord Baltimore) for the creation of the colony in 1632, it is the earliest obtainable map of Maryland. A notable feature on Ogilby’s map is the extension of the northern boundary of the colony to correctly show the area up to 40th parallel, which was drawn too far south in the earlier Lord Baltimore Map. This error caused the Penn and Calvert families to dispute the boundary between Pennsylvania and Maryland that was not finally resolved until 1767 when the survey of the Mason-Dixon Line was completed. The map, which is oriented to the west, is not very detailed but does show Maryland’s earliest counties for the first time along with a few settlements but, surprisingly, Baltimore does not appear on the map. The map is decorated with the coat of arms of the Calvert family and a dedication to Cecil Calvert, who succeeded George as the second Lord Baltimore following his death in 1632. Blank verso. Other than a repair to the edge of the bottom blank margin and some minor creasing; the map is a strong, dark impression with wide margins in excellent condition. 29 cm x 37.5 cm