graphic black and white marker drawing of a set of mountain contour icons, , doodle

line drawing sketch illustration monochrome brand graphic black white marker set mountain contour icons vector doodle for mountains decorative abstract element decoration design collection peaks silhouette mountains peak drawing outline silhouette range sign vector illustration cut out icon symbol design nature sketch art hill shape art travel background adventure logo hiking simplicity element abstract tourism label plain flat climbing ridge doodle ice iceberg ice formation set collection