Altitude (Advanced)
From Alpha Centauri Wiki
The maximum altitude difference between any two adjacent squares is one 1000m band.
For example a square at 1000-1999m may be adjacent to any square between 1-2999m.
If one square changes altitude through terraforming ALL other squares will be instantly adjusted to preserve this rule.
If global warming/cooling would cause a square to violate this rule, that square will instantly be adjusted by raising or lowering it by 1000m to preserve the altitude rule.
This can cause a square to be 'washed' of improvements, units or even a base. It can also cause a 'raised' tile to actually lose altitude or a 'lowered' one to gain altitude.
