A recent discovery has revealed two medieval cities, Tugunbulak and Tashbulak, in the grassy mountains of eastern Uzbekistan.** These highland cities, located at an altitude of 6,600 feet, were once major centers for interaction along the Silk Road. The use of technology such as aerial light detection and ranging (lidar) has helped archaeologists map the fortifications and urban architecture at these sites. Early digging at Tugunbulak suggests the city could have sprung up around ore deposits as a regional blacksmithing center. **The discovery challenges the traditional view of the Silk Road as merely linking lowland cities and highlights the role of mountains as a hub for trade and cultural exchange.