The Devana Chasma quadrangle ( V-29 ; 0 - 25degN/270 - 300degE ) is situated over the northeastern apex of the Beta - Atla - Themis ( BAT ) province and includes the southern half of Beta Regio , the northern and transitional segments of the Devana Chasma complex , the northern reaches of Phoebe Regio , Hyndla Regio , and Nedolya Tesserae , and several smaller volcano - tectonic centers and impact craters .