How to fix this weird looking fog

Hi, so im getting this weird fog looking thing the longer the distance I am from the mountain. It has somehting to do with the size of everything but unfortentuly thats not adustable because of how much there is to resize and it makes my computer cry lol. I know its not fog cause I turned that off. Any help is appreciated. Thanks!

You turned off Expo fog & SkyAtmosphere/AtmosphericFog? From the look of the things it appears there is still some type of fog in that level.