It comprises an area where erosion has worn away the majority of a mountain, composed primarily of clay rather than rock, leaving tall spires. It is similar to another zone of La Paz that is known as El Valle de las Animas (The Valley of the Souls). It[clarification needed] is an important site of the famous holiday, Dias de los Muertos (Day of the Dead).[citation needed]

Because the mineral content of the mountains varies greatly between individual mountains, the sides of the mountains are different colors, creating striking optical illusions.[citation needed] A majority of them are a clear beige or light brown color, but some are almost red, with sections of dark violet.
The Valley of the Moon and the whole area around is pretty spectacular and so peaceful compared to La Paz itself. There is a new camping site just opened along the road - with amazing views, brand new toilets and showers, cool outdoor kitchen and hammocks with a pretty special view down the valley.you can take a bus, or hiring the service of a travel agency.