Cave Terrain

The point of this post is to give you a list of cave terrain. The more out of the ordinary terms are linked to Wikipedia. 

None of this may be accurate! But, in conjunction with Interesting Space, you need some things to say when you're ticking off those stamina points and rolling for wandering monsters.

For the ultimate in interesting cave areas (not just general features), check out 100 Caves. 

• Rubble, Scree, Talus 
• Pitch: A hole, shaft, chute, or vertical tunnel usually requiring rope to traverse. One that doesn't require rope is called a climb.
• Sump
• Chimney: From Wikipedia: "A rock cleft with vertical sides mostly parallel, large enough to fit the climber's body into. To climb such a structure, the climber often uses his head, back and feet to apply opposite pressure on the vertical walls."
• Steps 
• Squeeze: a horrible place you have to crawl through, and it's touching you
• Crawl: like a squeeze but not as bad; the walls and ceiling aren't touching you all the time
• Water (Stream / River / Lake / Pool)
• Speleothems