City placement and resources?

[joncnunn]

Myself, it depends upon the resource; some of the resources have bonuses that with improvements would be a true crime to intentionly build a city on them, while other improvements are really minor in bonsuses.

[couerdelion]

There are also times when you get a better bonus by building a better improvement on the tile where you would have founded instead.

And later on in the game I often replace old improvements if I have no use for the resource itself