I made this because to begin with, I was bored. The idea had been floating around, and then one day I just decided to make badlandsfling. So I made that, it was a bit badly done. Then I made Gravelpitfling, which was much better done and more efficient. Then I thought. Hey, what's the point in having them in two maps? So I just put them together. Took a little tweaking, but now it works.
Gravelpit I'm happy with, apart from occasionally the signs become a bit mismatched and show the wrong ramp. However, badlands I'm planning to redo entirely and make it look actually like badlands, as before I copied only the bare essentials. I'm planning to copy the whole thing, optimise it a little and sort it out. Tell me of any places on gravelpit where the bots can stand freely without being teleported back, but badlands will be redone anyway.
Hope you enjoy it, I know it's not as good as real practice, but it's the closest you're gonna get on your own for now.
EDIT: I'm sorry guys, completely forgot about adding Valve to the credits. They're in there now, and it's quite clear that Valve created the maps, I only copied them and added in my ramps and the teleportation system and everything in. It's not intended to say that I'm a great mapper, it's a map there to help people practice. Calm down.