Update June 18, 2025: Divided's Ire is an extremely large map, too large to be used in any VTT. This map has been completely redesigned and sectioned into areas that CAN be used better in your game, online or at the table. See the High Resolution files on the links below for those maps. Each of the sectioned area maps have been rendered at 100 dpi for a 5 ft. square grid for easier adaptation into a VTT.
Dungeon Magazine #147 carried the adventure "Into the Maw" which takes the PCs to the Abyss for the first time in the campaign. There are overland maps here, which aren't necessary for battles, but help to tie the story together and give the players a better connection to the area. Divided's Ire is the predominant dungeon. It is an Abyssal prison that is on the Lost Islands on the Abyssal layer of Gaping Maw.
Campaign Addition: In our campaign, I had some very important people held in the prison of Divided's Ire. Each of the prison's wardens (the massively powered demons) had a piece of the key that opened the cell doors. There were five pieces that formed the key. I've attached those here as well.