i don't really want to use that one though. How about:
Size: Clearing: Standard (100-yd diameter) Rest of Woods: Unknown
Boundaries: Trees form a 100-yd clearing; the rest of the woods are dense, dark, and possibly haunted. Ground forms lower barrier, and canopy covers top thickly
Active Element: Darkness
Description: A forest growing unabated since time immemorial. It's said to swallow the souls and bodies of those who enter, darkly empowering its own spirit, but that's just folk tales. The bones on the ground are animal. Probably.
"I meant," said Iplsore bitterly, "what is there in this world that makes living worthwhile?"
Death thought about it.
"CATS," he said eventually, "CATS ARE NICE."
Terry Pratchett, Sourcery