Volcanic vineyard in the La Geria wine region of Lanzarote, …
Surrounded by rugged, dark landscapes, La Geria is a marvel of viticulture. Most of the Spanish island of Lanzarote is treeless and covered with black-gray soil. This thick blanket of volcanic gravel is the result of a series of eruptions in the 1700s. By 1775, farmers started growing crops in the new layer of nutrient-rich soil.