Detailed map of of Alaska and part of the contiguous British Possessions. Includes excellent topographical detail and treatment of the coastal regions and major rivers for the period. Many place names. Includes soundings in the Kamtchatka Sea. One of the earliest separate maps of Alaska to appear in an American Atlas.
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.