ancient rock

• boulderLarge weathered stone
• fossilPreserved ancient organism
• geologicalOf Earth's physical structure
• primordialExisting from the start
• sedimentParticles settling in liquid

granite · weathered · megalith · petroglyph · bedrock · erosion · prehistoric · mineral · stone · monolith · outcrop · formation · strata · limestone · lichen · timeless · petrified · archeology

• Canadian Shieldboreal forest, glacial lakes, Hudson Bay, Lake Superior, metamorphic rock