Cavern 1

Cavern 1 

Total vertical height is 180 ft.

7 shafts down, one small entrance, one larger opening that has two shafts down.

Ten or so larger open areas, one especially so, and most all interconnected, with one large passage. there are three shafts going up an terminating in a small end.

 

If filled with water, this is how it might look, and this would mean there would be no sumps other than the one in the lowest chamber. 

EDIT: and the next chamber up to the left has a very small air area after a sump.