The Red Dragon's lair is where?!

[ejja_1]

Gigantic lake with geothermal vents?
Access is from underwater only, dragon ventures out once a fortnight for food and fun.

 

[ruleslawyer]

Just how much damage would you take if a thousand-ton pale of burning coal collapsed on you?

You should think of submitting this as a supplement to Fire and Brimstone.

 

[Rechan]

I actually like the idea of a straight up desert.

Another option might be somewhere like the Amazon or the Congo - it's not firey, it's just hellishly hot.