ILBH1:

ILBH3:

Tiny opening; not diveable.

ILBH4:

Survey complete, map in process. 

ILBH5:

20 foot wide rift, unpassable restriction at 10’ deep

ILBH6A:

50’ max depth; chokes to small tunnel

ILBH6B:

40 foot max depth; rift cavern zone;

ILBH7:

15 foot vertical chute; sidemount grinder