Underground Volcanic Tunnels:

     These tunnels will eventually lead into the heart of a volcano. Roll on the following chart to see what state the volcano is currently in:

 

%Roll: Current state of volcano:
01-15:   Active:       1% chance per day to erupt.
16-60:   Dormant:   1% chance per day to become active.
61-00:   Inactive:    Extinct volcano.

 

     The chart, used to create random volcanic tunnels is not finished yet.  Until it is finished, be creative with this one on your own.