QUOTE(Skallywag® @ Aug 1 2006, 08:35 PM) [snapback]16564[/snapback]
Looks like on decking boards against a wood panel wall then. Nice work CML and really nice to see everyone rallying around supporting each other

In my opinion, I disagree.
The ground is a concrete slab or compacted dirt. In the third photo those are shadow lines on the ground from the awning above.
The 4th photo is of the top of the stairs and the stair landing that is built in the hillside. The people race up it during the record breaking scene. I believe the landing ends and proceeds to become the concrete/dirt where the game is located.
I have watched that scene about 50 times last night and today so I could help. Either way, do you really need the ground? it does not look like it from the preview cover.