Forest rock

A mossy boulder is a small structure found throughout old growth taiga biomes.

Generation
A mossy boulder is a structure that represents a boulder, made entirely of mossy cobblestone. They can be found dotted around areas of the old growth taiga biome at the same Y level as grass / podzol but sometimes at high or low elevations if generated in a ravine or on a hill.

Structure
Mossy boulders represent fairly large rocks, varying in size and shape, and usually half-buried in the ground. Their shapes are overall similar, although some are smaller or larger depending on generation, and whether it joins with a nearby boulder. Each face tends to have a cross shape or square shape, possibly missing a corner or two.