Corinne, UT

ZIP code 84307 serves Corinne and nearby rural areas in Box Elder County, northern Utah. Its best-known landmark is Golden Spike National Historical Park at Promontory Summit, where the transcontinental railroad was completed in 1869; the site preserves the meeting point and historic locomotives. The area also includes the Corinne Historic District and, on Great Salt Lake’s northeastern shore, Robert Smithson’s Spiral Jetty earthwork.