An passage across a ravine in the mountains.
This is my interpretation of map 2 from the free adventure "A dungeon and a dragon" by Chris Bergman. The other three maps are also available here at DungeonFog.
No lightsources have been used as none of the races in the caves need light to see.

The rope bridge may be hidden and the broken bridge unhidden through the layers menu.

I used the adventure as the beginning of the 3,5 D&D "Expedition to the DemonWeb Pits", which explains the gate room on the second level of map 4 and the drow-patrol on map 3. The name and color of the dragontoken does not match the original adventure.