Detailed and attractive map of the United States, with a larte iset of the Territorial District of Alaska formerly Russian America, ceded to the Uited States in 1867. The map is shows towns, mountains, railroads, forts, rivers, ports, and a host of other details, incliuding a very early appearance of Yellowstone, called only National Park. The details in the west are quite exceptional, as good as any commercial atlas map of this period.
O. W. Gray was a publishing firm based in Philadelphia. Later, they published as O. W. Gray & Son. They published atlases in the late nineteenth century. Gray's National Atlas was one of the most successful commercial ventures of the 1870s and one of the last to employ hand coloring on maps.