We were fortunate enough to inherit several Lego sets, circa 1989-1992, I think. Several of them have 32x32 raised base plates, with ramp and pit. My son would like to build one but I can't find which set to which it belongs.
It appears to be 'Baseplate 32 x 32 Raised with Ramp and Pit' (2552), but is a blue base with gray rocks and tan top. Just like 2552px3 (http://www.peeron.com/inv/parts/2552px3
) but tan instead of gray. Any ideas?