Where did the Inca developed?

The Inca civilization developed in the Andean region of South America, primarily in present-day Peru, where they established their capital at Cusco. Their empire extended across modern-day Ecuador, Bolivia, Chile, and Argentina, thriving in the high-altitude environments of the Andes mountains. The Incas are known for their advanced agricultural techniques, impressive architectural achievements, and extensive road systems that facilitated communication and trade across their vast territory.