Speaking of the NP and the 1880s...
No. 201 in the Stampede Pass area:
Switchback No 1:
Switchback No 5:
Amazing piece of railroad engineering, the Stampede Switchbacks! (Trestles out the wazoo and up to 5.6% grades!)
Yup, the NP is alright in my books! (Loved their original F, GP, and RS schemes, too!)
Andre