Europe might be cold, but it has limestone
Tour de France 2024 The dust is chalk, and this limestone is great for producing soils for grapes. It sets nicely after rain but can be treacherous when trying to ride on when dry. It is normal to call a non paved road gravel but in civil engineering terms, gravel size starts grows from the millimeter range up. Thankfully like alkanes, the long history of the earth has given most continents, layers of this essential mineral on their edges. We near the Otway's have some great resources as a result