Amtrak's #5 banks into the tight 10 degree curve at Pinecliffe, CO following South Boulder Creek. Its head end is exiting Tunnel 29 while the tail end passes through the day-lighted Tunnel 28.
Amtrak's westbound California Zephyr approaches Tunnel 29 and the small community of Pinecliffe at just over 8,000 ft as it winds through the tightest curve on the Moffat Road at 12 degrees. #5 ha... (more)
On a crisp Saturday afternoon, Amtrak's Phase II Heritage Unit coasts west, approaching naperville for a station stop.
Here is the CZ ducking under the Yackley Bridge.