Ideas for rock terrain
Large Foam Rocks for Warhammer and dnd. Large Scatter Terrain
Tutorial: How to make modular foam hills fast and easy » Tale of Painters
DM Davy - Epic battle on top of grassy cliffs. XPS foam
Cheat At Hobbying: Add Sand & Cliffs To Your Bases
Built some very simple polystyrene cliffs as line of sight blockers for even large models. : r/TerrainBuilding
GameMaster: Ruins & Cliffs Terrain Kit - The Army Painter
Ideas for rock terrain
The Comm Guild: Terrain Tutorial: Rocky Outcrops.
Foam Rocks and Cliffs Warhammer Terrain
Cheap and Easy: DIY Terrain