What physical obstacles did the Incas face in managing their empire?

The Incas faced significant physical obstacles in managing their empire, primarily due to the diverse and rugged geography of the Andes Mountains. This included steep mountain ranges, deep valleys, and high-altitude environments that made transportation and communication challenging. Additionally, the varying climates across different regions posed difficulties in agriculture and resource management, requiring the Incas to develop innovative solutions like terracing and extensive road systems to connect their territories.