What map is this? (No pics, I dont know its name :/)

Hey guys, I’ve always been looking for this one map.
Its like flatgrass, but it isnt. It doesnt have a tunnel under the stone thing, and the stone thing is like 1 foot in height.
And there are no mountains, or a sign saying flattywood. Anyone know? Please help. All help is appreciated.

Pre gmod 13 flatgrass?

Gmod 12 flatgrass, to be exact

What is the world coming too when people already forgot about the old flatgrass when it was default just a few months ago

http://db.tt/mKUZIP4Y

Because noobs are noobs

EDIT:

“Always been looking for X” seems to be now “i searched the interwebs for hour where is it”