What surface engravings on cast iron evoke topographic maps or river networks?

Cast iron engravings often draw inspiration from nature, with designs resembling topographic maps or river networks being particularly striking. These intricate patterns mimic the contours of landscapes, featuring winding lines, branching veins, and layered textures that evoke the flow of water or elevation changes. Artisans achieve this effect through techniques like etching, sandblasting, or casting molds with detailed reliefs. Such engravings not only enhance the visual appeal of cast iron pieces but also create a tactile connection to natural forms. Common applications include architectural panels, decorative furniture, and garden ornaments, where the interplay of light and shadow brings these "metal landscapes" to life. The trend reflects a broader movement toward organic, nature-inspired designs in metalwork.