I am afraid to build farms or other improvements because I think I might accidentally replace a late game strategic resource like Uranium before it pops on the map.

Is it a valid reason to be worried about or does the game handle it some other way?

  • The Civilization II engineer unit actually had the ability to change terrain types, from e.g. hills to plains. This would destroy the resource that was on the tile, if I recall. Civ IV and onwards only had engineers as specialist citizens, so resource modification/destruction hasn't been a factor in a long time.
    – Dacio
    Apr 25, 2017 at 19:26
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    Placing city and wonders (also districts in civ6) does not destroy resources I am aware about that. I was wondering about farms and mines. Apr 26, 2017 at 5:08

2 Answers 2


Since resources are predetermined when the map is created, the game won't look at what gets built there before revealing a strategic resource later in the game; because that is what happens, they are revealed.

That being said, no your farms will not replace the resource, nor will any other builder improvement. Say you build a farm on a hill, and then uranium is revealed there. You can easily replace the farm by building the appropriate mine right over top.

As a bonus piece of info, noted here and from my own experience, building a city over top that resource will not remove it either. So if you happen to build on top of coal, uranium etc, later in the game you will just receive it for free - no improvement needed.

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    It's so disappointing how the game ignores the benefits of uranium-fueled food in your population's diet...
    – xDaizu
    Apr 26, 2017 at 6:45
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    Minor extension: what you said about cities also applies to districts; provided that the district was plopped down (not necessarily fully built) before the resource was revealed.
    – Flater
    Feb 20, 2018 at 12:57
  • That's correct.
    – n_plum
    Feb 20, 2018 at 13:13

You're fine. The resource will still be there when it's revealed, and you can simply build another type of construction to gather that resource more efficiently

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    You don't begin to "gather" a resource more "efficiently", you just are able to own it with the appropriate improvement.
    – n_plum
    Apr 25, 2017 at 17:02
  • You can build some constructions which give you more of the resource if they're worked
    – Oak
    Apr 25, 2017 at 17:05
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    An example being? I don't know of constructions that improve the amount of resource you get from strategic resources.
    – n_plum
    Apr 25, 2017 at 17:07
  • You can assign workers (specialists) to them, in some cases
    – Oak
    Apr 26, 2017 at 0:38
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    In what cases in specific? I've never heard of that.
    – Arperum
    Apr 26, 2017 at 11:31

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