What If We Built Billings Now?

The majority of American cities and towns are located where they are due to their close proximity to water and/or railroads. But, let's pretend that we were all just given this land where we live now, and it had nothing on it anywhere and we would get to place all of the buildings and even add ponds and lakes if we wanted to.

Would the heights be the "Rich people" area because they are higher in elevation than downtown? What about the area between Laurel and Billings west end? Would that all be just for agriculture?

Curios to see what you think.