mouth of an old mine, Costante mine, Paleolithic Park of the Cueva del Valle, Rasines, Cantabria, Spain.

ACTIVITIES • ARBOL • AUTUMN • BEAR • CONTEMPLATIVE • ECONOMIC ACTIVITIES • ECONOMIC ACTIVITY • ECONOMY • ENVIRONMENT • EXPLOITATION • FALL • FENCE • FLUVIAL • FOREST • GRASS • HIKER • HIKING • JOURNEY • JOURNEYMAN'S TRAVEL • JOURNEYMAN'S TRAVELS • KNOLL • LANDSCAPE • LANDSCAPES • LEISURE • MEDITATIVE • METALLURGICAL MINING • MINERAL EXTRACTION • MINERAL RESOURCES • MINING • MONT • MOUNT • MOUNTAIN • MOUNTAINS • MOUNTAINS. • NATURAL RESOURCES PROCESSING • NATURAL RESOURCES • OLD • OUTDOOR • OUTDOORS • OUTSIDE • PARK • PASSAGE • PASSAGEWAY • PATH • PEACEFUL • PRIMARY SECTOR • RAMBLER • RAW MATERIALS • RESOURCES • RIVER • ROAD • ROCK • ROCKS • ROCKY • SEASON: SUMMER • SKY • STONE • STONES • STREAM • SUMMER • SUMMERS • SUMMERTIME • THRIP • TRANQUIL • TRAVEL • TRAVELING • TRAVELS • TREE • TREES • TRIP • TRIPS • TUNEL • TUNNEL • VALLEY CAVE, THE • VOYAGE • WALKING • WALL • WAY • WOODLAND • WOODS