Attention:
This mod has been replaced by a successor: https://forums.factorio.com/forum/vie ... 14&t=12412
This mod overrides in-game Perlin noise based resource/units spawning system by region divided spawning system.
In short - distances between resources become much longer.
To make up for a distance, resource richness slightly increases with each region further away from the starting area.
RSO also controls spawning of biter bases to make it easier for a player to move further into the wilds, but don't expect resources to be biter-free.
Mod aims to encourage trains and other means of long range transportation, which has little practical use in unmodded game due to abundance of resources.
Checkout recommended mods section.