In ancient times, when Fire Emblem hacking was young, many hackers sought to create maps using both buildings and forests.
But by the cruel mercies of the vanilla tilesets, they were disbarred from any variant of this that looked good.
Many years have passed. Zoramine’s Updated Fort Tileset exists, as do several others with a similar goal.
But with this project, I’ll bring back the original ruins!

In addition to trees from the Fields tileset, it also has a couple additions to the floor tiles: a throne against a wall, and a middle right section of the 3x3 circle that doesn’t have shading. Aside from the new trees, everything should be completely compatible with the original Mountainous.
Download it here! Feel free to make edits, as long as you inform me.