I spent the day in Dayton, Ohio.
This was filmed where the NS and CSX main lines cross the Great Miami River.
It was a good viewing spot but several trains snuck up on me because I was not familiar with what they were calling out on the radio and there was a lot of talk with trains close enough to be picked up but not coming through necessarily.
Also, there is only a crossing west of the bridge, so, that's the only time I would hear a horn.
Overall, I certainly enjoyed it.
I included a condensed version of the radio traffic I picked up while filming.
Let me know what you think and where you like to watch trains.