Rockiness
Each land square on the map is flat, rolling, or rocky. The rockiness of a mineral square affects its potential mineral production:
- Flat—no minerals unless a mine is built there
- Rolling—one
- Rocky—one, three with a mine and four with a mine and a road
Rocky areas inhibit movement, costing twice the normal number of moves to enter. Units on rocky squares receive +50% defensive bonus in combat.
Nutrients provided by Rainy and Moist Rainfall are nullified, though nutrients provided by a Resource Bonus will still be picked up.
A base cannot be founded on a rocky square, nor can farms be built there. The rockiness can be reduced by a Terraforming Unit using the Level Terrain command.