This is the horizon 100 miles from the mountains and 150 along them. This is from The Rockies through Denver to the prairie, and it looks just like this for many hundreds of miles north to south. I used to live there and saw a few hundred miles of it at least and it never changes. Are you saying:
- you see a curve in this photo north/south or east /west?
- there is no curve here?
- saying the curve is in the photo but not discernible?
- something else?
Even though it looks like the prairie is rising - it's really not. They measure it to sea level somehow and it barely changes until you get past Kansas.
How does the sea level measurement work in your idea? Do you have that already discussed in another post?