The construction of I-70 in Colorado and Utah is considered an engineering marvel, as the route passes through the Eisenhower Tunnel, Glenwood Canyon, and the San Rafael Swell.
A construción do I-70 en Colorado e Utah considérase unha marabilla da enxeñaría, a ruta pasa polo túnel Eisenhower , Glenwood Canyon , e o San Rafael Swell.