True first state of the Samuel Lewis map of Maryland, from the American Edition of Guthrie's Geography Improved.
The maps from this work were also included in Carey's American Atlas (1795) and Carey's General Atlas (1796). This is the first map of Maryland to appear in a commercial atlas published in America. The map shows counties, towns, roads, rivers, lakes, mountains, islands, and a host of other details. The City of Washington is noted. A large inset shows the western part of the State.