Top tier on uneven driveway

[Totemir]

I moved into a new house. Got my brew stand out to find a spot to brew. I can not find a spot that the stand is level and the mast is on the ground. Does anyone have any suggestions (besides moving) to remedy the situation. Thanks in advance.

 

[haberdasher]

a 2x4 or brick or other thickness depending on rate of slope (easy to measure) under one leg of the top tier, on the downhill side. The other two legs perpendicular to the axis drawn by the single leg on the riser.