Marañón: sourced from ancient origins.

The Peruvian Department of Agriculture is processing the paper work to make the Maranon Canyon, with its own micro-climate designated as the only source of Pure Nacional in Peru.
This Pure Nacional is the only genetically verified Pure Nacional in
the world. the Pure Nacional that became extinct in 1919 in Ecuador
was 100% purple beans. the Pure Nacional Marañón discovered has 40% white beans. They control the worlds supply of these beans and couverture made from these beans and have only a limited supply.