The Desolation and the Span

Beginning a long day's journey west of Westerford is the Desolation and the Span. The Desolation is home to Spellbinder Uras' great experiment, Stonehell Dungeon. Aldwynne is a ruined town in the Desolation bordering a huge river with a rusty, steel girder bridge crossing it; 100’ or more drop; think Mississippi, it used to be the western border of human civilization. Aldwynne was inundated with saltwater from the god of the sea’s Dominion.

https://www.nps.gov/dino/planyourvisit/images/Box-Canyon-end.jpg