I shot this in Wind Cave NP which is in South Dakota. We had hiked up to a fire tower to get this view. From this spot we should have been able to see all the way to Badlands NP which is 40 miles away. You can see some haze in the distance which came from the California wild fires. From here you can see beyond the black hills and onto the great plains.
(Thanks for you nice concern. t will, slowly. )