Dungeon Master and Chaos Strikes Back interactive maps by 3DH

These interactive maps are supplied by 3DH. Their purpose is to avoid searching for coordinates.
You can type coordinates at the end address or click in the text and it will show you the corresponding location on the map.
You can click on the map and it will show you the associated text.

When you click on stairs and teleporters you get a link to go to their destination.

Dungeon Master maps

List of everything:,0,0

Chaos Strikes Back maps

Prison (shown as levels 10 and 11):,9,1
List of everything:,0,0

Original source: