Biome Inquiry

Togetic

I think your question is unclear.
However, I will try.
I'm not aware of a map with biomes, similar to the silph road atlas for nests.
And keep in mind there are studies/threads on shilph eoad reddit that show that a biome can be a sole spawn point.
In my city there is a mointain biome spawn point that gives clefary and once in a month maybe a dragonite. That spawn point is in a park that besides nests mostly spaws nidorans which I don't think belong to same biome with clefaries and dragonites.
A not legit sourse can be a tracker of the area tou are interested.