Where Am I?

[SteamGene]

Hocking Valley. 
Can't be the Napa Valley.  Hills are too rugged and the Napa Valley is fairly wide and has been full of vineyards for years and years. 
Gene

[Guilford Guy]

No Paul, she's not home right now, as long as I'm back before dinner.
Nope, not Napa Valley... The Valley starts with one of the letters in Yampa...

[Santa Fe buff]

What are you doing up so late???

I up until 3am and I'm 12! I just never get on until 10 o'clock, and it takes me some time to check all my things.

[Dr EMD]

Yosemite Valley

[az2rail]

Big Bear!!!!

Hell, I don't know.

Bruce

[thirdrail]

The picture is too poor to identify anything. But, the mention  of a 78 percent grade makes it the Yosemite Valley. There was an operation that pulled logging flatcars using a cable of the side of the valley to a logging camp above. All this was gone before I was born and I'm 67 years old.

[Guilford Guy]

Bing Bing! Its the Yosemite Sugar Pine Lumber Co. looking down into the Valley, in 1957, many years after the Lumber Company left, and a dozen years after the Yosemite Valley quit.
I thought the height differential might provide a correct guess.

[Guilford Guy]

Tomorrow at 1:45, The Color of a Brisk and Leaping Day, is playing on IFC