The Sacred Valley of the Incas or the Urubamba Valley is a valley in the Andes of Peru, close to the Inca capital of Cusco and below the ancient city of Machu Picchu. It is located in the present-day Peruvian region of Cusco. In colonial documents it is referred to as the “Valley of Yucay. ” According to recent researches it encompasses the heartland of the Inca Empire. The valley is generally understood to include everything between Calca and Lamay, Písac, and Ollantaytambo.