Terrain types:
rich grass terrain (green): player starting areas have all you need to start out; wood, food, gold, stone.
Dry grass terrain (tan): forests, deers and berries are scattered on the map.
Bog terrain (cyan): marshy, unbuildable yet walkable with occasional fish.
Dirt terrain (ochre) has small gold and stone deposits on hills
Cracked terrain (yellow) on the four corner mountains weakens buildings with large gold and stone deposits.