The Moffat Tunnel is a railroad/water tunnel that cuts through the Continental Divide in north-central Colorado. It was named after Colorado railroad pioneer David Moffat. Fifty miles (80 km) west of Denver is the East Portal in the Front Range, about 10 miles (15 km) west of the town of Rollinsville. The West Portal is near the Winter Park Resort. The railroad tunnel is 24 ft (7.3 m) high, 18 ft (5.5 m) wide, and 6.2 mi (10.0 km) long.