That’s a good question, Zach. I am intrigued by the building in the top right corner and the topography in the background. You wouldn’t happen to have a photo in higher resolution, would you? Or a link to the original?
I did find some references to the building in the 2003 Van Cortlandt Cultural Landscape Survey–although, its author is not too sure where this is either. See below:
Here’s a closeup of the photo: