I would love to see a Silver Star/E:GF style attraction in the valley. You could achieve an excellent drop and use the landscape to build some fantastic hills, helix' and overbanks. No inversions just terrain based hills and air time elements.
Thats a very large scale ride. On the smaller side (not utilising the huge drop) you could have an excellent gerstlauer bobsled (my fav. ride type) twisting and turning through the trees, ground hugging and loads of intense air time bunny hops. This idea wouldnt be a valley filler but it would be a concept Alton havnt tried yet and one which would provide some fantastic, fun and family thrills. The style of the gerstlauer bob would also stop many trees having to be felled, its quite a compact build.
Just had another idea :P Maybe an Intamin bobsled ride (like Eftelings). That fits excellently into Eftlings forest location and its a stunning ride offering a fantastic experience as you fly past the trees in your "out of control" bob.
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