Underground Exploration
p. 37, Uncovered Secrets, Volume 1
Underground Chambers
| Underground Chamber |
|---|
| Towering waterfall |
| Massive rift |
| Spiraling pit |
| Chilled boneyard |
| Molten lake |
| Mushroom grove |
| Shattered keep |
| Forgotten crypt |
| Primeval cairn |
| Deep shaft |
| Ruined village |
| Underground lake |
| Hall of faces |
| Chamber of pillars |
| Huge stairwell |
| Petrified forest |
| Crystalline chamber |
| Infernal prison |
| Caverns of echoes |
| Abandoned mine |
| ^undergroundchambers |
Underground Connections
| Underground Connection |
|---|
| Narrow rift walkway |
| Underground river |
| Molten lavaflow |
| Worm’s tunnel |
| Rotten roots |
| Dimensional portal |
| Ancient hallway |
| Infested warren |
| Dwarven roadway |
| Mining tunnels |
| Natural caves |
| Steam vents |
| Cracked feygate |
| Giant staircase |
| Narrow bridge |
| Arcane doorway |
| Lower planar rift |
| Forgotten sewers |
| Earthquake fissure |
| Bottomless ravine |
| ^undergroundconnections |
Underground Monuments
| Underground Monument |
|---|
| Floating rocks |
| Black obelisk |
| Huge skull |
| Iron statues |
| Charnel pit |
| Webbed corpses |
| Arcane circle |
| Cracked megaliths |
| Glyphed archway |
| Bloody battlefield |
| Towering effigy |
| Offal mound |
| Giant sword |
| Huge statue |
| Steam vents |
| Carved stalagmites |
| Sacrificial altar |
| Iron sarcophagus |
| Smoldering firepit |
| Hanging cages |
| ^undergroundmonuments |
Underground Effects and Hazards
| Underground Hazard |
|---|
| Dripping acid |
| Psychic screams |
| Lava cracks |
| Freezing fog |
| Bloodraging song |
| Poisonous geysers |
| Static discharge |
| Arcane instability |
| Lifedraining glyphs |
| Slippery ooze |
| Ancient traps |
| Scarab swarms |
| Gripping shadows |
| Razor shale floor |
| Charming mosaics |
| Explosive runes |
| Falling rocks |
| Magnetic ceiling |
| Bladed statues |
| Antimagic pockets |
| ^undergroundhazards |
Underground Encounters
Best for characters of 3rd to 6th level.
| Underground Encounter |
|---|
| Murderous bandits |
| Bloody cultists |
| Plagued rats |
| Drow scouts |
| Skeletal guardians |
| Cunning cockatrices |
| Orc zombies |
| Gray oozes |
| Monstrous shadows |
| Bugbear hunters |
| Howling death dogs |
| Starving ghouls |
| Giant spiders |
| Misguided specters |
| Spiders and ettercaps |
| Otherworldy mouther |
| Ogre mercenaries |
| Minotaur skeletons |
| Stone-eyed Basilisks |
| Guardian wights |
| ^undergroundencounters |