drying llama and alpaca waste for use as fuel and fertilizer in the high andes. ausungate, cusco, peru

drying llama alpaca waste use as fuel fertilizer high andes ausungate cusco peru poo cuzco dung warmth hills quechua mound pit trail sky farm mud valley fleece community ausangate mountains south america brick wool andean rural smoke dirt chorten culture blue trek chillca altitude sheep tambo adobe farming driying fire shorn used