Years ago, I spent several days in a motel in Ontario. My vendor came and picked me up every morning.
On the third morning I went to the waiting place outside and turned around and behold....... there were mountains, big mountains, right there.
The air was so foul the mountains were obscured the days before
I went to middle school and high school in Upland 1965-1968.
The polluted air (sulfer dioxide) was mainly coming in from
Kaiser Steel in Fontana. Used to be acres & acres of lemon & orange groves in Upland. A few miles east were grape vinyards! Bet you won’t find any of them today!
Our school cafeteria sold a bag of Fritos for a nickel. For a nickel more, they would ladle a scoop of chili con carne in the bag!
B.T.W.... Mount San Antonio in the winter,was a beatuful sight!