The Salt Lake Tribune recently released over 17,000 photos from its archives. The collection, which was scanned one negative at a time, took over a year to digitize. Photos range from the 1930s through the 1960s and highlight people and events throughout the state. From Westminster’s May Day Queen (who was everything) to crime scenes and car accidents, all photos are available for download and free for non-commercial use.
You can view the photos on the state history website. I’ve skimmed a few thousand thumbnails so far and found it easiest to use the gallery option. Also, searching for things by location or event yields some good results.
One of my favorite finds was an “Old Fashioned 4th of July” put on by Lagoon over 50 years ago. Not so much the photos themselves, but the proof it offered that nostalgia (despite how personal it feels) is far from a new concept.