Land & bulldozing

Reshaping the ground and clearing what is in the way.

Flatten ground that is too uneven to build on, and clear what stands in your way.

Raising and lowering

Pick Raise land (6) or Lower land (7) and click near a tile corner.
Neighbouring corners follow so slopes stay gentle. Each corner that moves costs $300.
You cannot reshape ground under buildings, roads, track, bridges or tunnels.

Pick Level land and drag over an area: it is levelled in one go to the height of the corner where you started, shown in the note beside the pointer.
Hold Shift while dragging to level to the lowest corner in the area instead, or Alt for the highest. R switches which one is used when no key is held.
Each level a corner moves costs $300, as by hand, and trees on the reshaped tiles are cleared for $140 a tile. The note shows the total before you let go.
Tiles that can't change - a building, road or track, a station, water, a vehicle, another company's property - turn red and are left as they are. The rest is levelled as far as the slope rules allow.
Clearing trees near a town this way upsets its council, just like bulldozing them. One Ctrl+Z takes back the whole area.

Pick Bulldoze (8) and click a tile or drag over an area.
It removes one layer from each tile: a station, signal, track, road, building or trees.
Industries cannot be demolished, and nothing can be removed while a vehicle stands on it.

Ctrl+Z, or Undo on the toolbar, takes back the last thing you built, reshaped, planted or bulldozed and returns exactly what it cost. Press again for the one before, up to 20 steps back.
What you bulldozed comes back as it was - buildings, trees, track and stations - and the council forgets the demolition.
A step can no longer be undone once more vehicles call at the new station, the site has changed (a rival or the town built there) or 60 days have passed. While a vehicle stands on it, wait for it to leave.
Vehicles, orders and loans are not undone.