Mountain is one of the most versatile primitives in Gaea. It uses a modulated Voronoi pattern and distortions to create realistic mountain shapes, ready for further modification and erosion.

For simple results, such as distant mountains that don't require much detail, you can create a Mountain primitive with a scale of your choice and add the Erosion node. This is the easiest way to create a lot of simple assets.
Properties
| Mountain | |
| Scale | Controls the overall size and extent of the mountain. Higher values create broader, more expansive mountain shapes. |
| Height | Sets the maximum elevation of the mountain, determining how tall the peak rises above the terrain. |
| Style | Specifies the geological and visual style of the mountain, affecting its shape, erosion, and surface features. BasicGenerates a simple, unmodified mountain with minimal erosion or geological detail. ErodedApplies erosion effects to the mountain, creating realistic weathering, gullies, and worn surfaces. OldSimulates an ancient mountain with softened features, rounded slopes, and significant erosion. AlpineCreates sharp, rugged alpine features with steep faces and dramatic relief, typical of young mountain ranges. StrataAdds visible geological strata or layers to the mountain, emphasizing sedimentary or volcanic banding. |
| Bulk | Controls the mass and volume of the mountain, affecting how thick or substantial the formation appears. LowProduces slender, less massive mountains with more delicate features. MediumCreates mountains with a balanced amount of mass, offering a natural appearance. HighGenerates thick, heavy mountains with substantial volume and broad bases. |
| Reduce Details | Reduces the amount of fine surface detail on the mountain, resulting in a smoother, more simplified shape. |
| Seed | Randomization seed for generating unique variations of the mountain. Changing the seed produces different shapes and arrangements. |
| X | Offsets the mountain horizontally along the X axis, shifting its position within the terrain. |
| Y | Offsets the mountain horizontally along the Y axis, shifting its position within the terrain. |