Board Thread:General Mod Discussion/@comment-26453572-20160306155252/@comment-26172435-20160306165845

River generation can be set on or off for any biome and sub-biome. River occurence can however not be set independently, just on or off. The generic river biome is valid for 80-90 % of biomes.

Some biomes have a dedicated river biome. I figure for those biomes the river generation occurence may be set by adjusting it in the dedicated river biome class file.

If you have concrete feedback suggestions concerning adjustment of the above, just post it on the feedback board. More rigorous changes can be proposed in the suggestions forum. Example: create code to set river generation characteristics per biome.