Hey,
Came across this by accident whilst seeing if Wikipedia had anything on Hagans Switchback (But I'm not here asking you for any of that.
I know allot already). Just that my scrolling brought me to a switchback TT photo I think you'll enjoy..It's not US but, to me, striking.
And I've been thinking something like this instead of wye trackage, just recently !! Funny, that one !
So, TT aficionados (like, who ain't ?)
Go to Wikipedia..Enter: "Zig zag Railways" ...go down to bottom, old photo..Plus, check that early low rail ! ..
M