Possible Great Valley Map

This is very low quality, It's a map that I drew but gave up on after I thought it had some errors.

Please note, the scale is completely wrong.

I got confused around the SW side of the valley, as I couldn't tell where the mountains ended and the low area began. Or where the waterfall was. Plus, I couldn't decide where to place the Land Of Mists. The sun placement made you think that it was to the west, but the size of it all would leave no room for the lands seen when taking Mo home. I assumed it was southish, and that it was the same land travelled through on the way to the sun canyon.

Land Before Time copyright Universal.