The East Portal is a significant entrance located in the United States that serves as a gateway to the Moffat Tunnel. This tunnel, completed in 1928, is an important railway passage through the Rocky Mountains, facilitating transportation and commerce in the region. The East Portal is situated near the town of East Portal, Colorado, and is characterized by its scenic views and historical importance. It provides access to various outdoor activities, including hiking and sightseeing, making it a popular spot for visitors interested in the natural beauty of the Colorado Rockies.