found:Rand McNally comm. atlas, 1997(Pittsburgh, inc., seat of Allegheny Co.)
found:Pa. Bureau of Land Records. City of Pittsburg, north side, 1838 [map].
found:Mosher-Adams Inc. North Side, Pgh., c1997:map recto (City of Pittsburgh; Pgh.)
found:Cole, B. The land of Dayaogeh, c2006:pref. (Seneca Indian word for the area at the convergence of the Monongahela, Ohio, and Allegheny rivers which became Pittsburgh)
found:GeoNames, algorithmically matched, 2009(ppl; 40°26ʹ26ʺN 079°59ʹ45ʺW)