(Darmstadt region) and Lower Franconia, bounded by the Odenwald mountains in the southwest and Spessart mountains in the east, around Aschaffenburg Nahegau: along the Nahe in southeastern Rhineland-Palatinate, bounded by the Hunsrück uplands in the northwest and the North Palatine Uplands in the southeast, around Bad Kreuznach : between the lower Nidda and eastern Taunus mountains in central Hesse (Darmstadt region), around Bad Homburg; sub-gau of Wetterau ('Upper Rhine Gau'): between the lower Main and the Weschnitz on the right bank of the Upper Rhine in Hesse (Darmstadt region), west of Darmstadt; initially a sub-gau of the wider Rheingau, gradually treated as separate as 'Rheingau' began to refer only to the small territory west of Wiesbaden : along the Perf and upper Lahn in southern Northrhine-Westphalia (Arnsberg region) and western Hesse (Giessen region), around Breidenbach; sub-gau of Oberlahngau or Hessengau : along the upper Pfinz in northern Baden-Württemberg (Karlsruhe region), east of Karlsruhe and northwest of Pforzheim; sub-gau of Ufgau : along the Rodau in southern Hesse (Darmstadt region), around the town of Rodgau; sub-gau of Maingau; notably absent from many atlas sources Vernagau or Pfirnihgau: between the lower Schwalm and the Efze, around Borken; sub-gau of Hessengau : along the upper Gersprenz and the upper Mümling in southern Hesse (Darmstadt region), around Erbach in the northern Odenwald mountains; sub-gau of Maingau Rheingau: along the right bank of the Middle Rhine and the Upper Rhine, between Lorch am Rhein (lower end) and Lampertheim (upper end); initially a large gau with Oberrheingau and Königssondergau as sub-gaue, gradually came to identify a small territory along the right bank of the Rhine, west of Wiesbaden where the Middle Rhine meets the Upper Rhine Speyergau: along the Speyerbach in southern Rhineland-Palatinate, bounded by the Upper Rhine in the east, the Palatinate Forest in the west, and the Lauter in the south, west of Speyer (Frankish) Ufgau: along the right bank of the Upper Rhine in northern Baden-Württemberg (Karlsruhe region), bounded by the Upper Rhine in the west, the Enz in the southeast, and the Elsenz in the northeast, around Bruchsal and Karlsruhe Wetterau or Wettereiba: along the Nidda in eastern Hesse (Darmstadt region and Giessen region), bounded by the Fulda in the east, the Taunus mountains in the west, and the lower Main in the south, around Friedberg and the Vogelsberg mountains Wormsgau or Wormsfeld: along the left bank of the Upper Rhine and