This barren valley connects the two halves of the continent of Kalimdor, and thus is an important buffer zone for any race to capture.
Capture the high ground of the valley walls for a good place to build defensive turrets and outposts.
Look out for the centaur and other creatures who also call this zone home.

There are doors everywhere because I couldn't get the creeps to stop aggro-ing people in their bases or walking through the chasm ):
That's also why the dragons, harpies and ranged creeps aren't there any more.

If anyone can give me any tips to fix this it'll make the map a lot better.

Update: I forgot to remove the computer player I was testing. How stupid.

Keywords:
Barrens, 2 player, 1v1, valley, canyon, choke point, tavern