DESCRIPTION
I'm posting Thermal Rift connector biome. It makes:
Lava Pools and Burning Forest maps compatible with winter biomes:
Winter Settlements A, B, C, D
Connector - Winter/Grasslands A, B, C, D
Alpine Ridge A, B, C, D
Winter Outpost A, B, C, D
Winter A, B and Winter River
There will be slight snow hue mismatch, but you can combine winter side with Frozen City sheets. There are also other Winter maps under Collections you might want to check out and combine, but those will result in half-hexes. It's still a viable option if you want to make a house rule, how to treat those hexes however, a bunch of hexes on the map border with only half of the label can be treated as neutral hex without any label to avoid confusion.