Cache Valley
FreeMountain valley in northern Utah anchored by Logan, with access to Logan Canyon, Bear Lake and Utah State University.

Photo: Chris Light, CC BY-SA 4.0, via Wikimedia Commons. Cropped and resized.
Golden Spike National Historical Park is a sightseeing stop in Brigham City, UT. Cost: under $25. Visitor center open daily early May to late October, Thursday through Monday in winter; West Auto Tour closed November to early June.
Promontory Summit, 32 miles west of Brigham City via UT-83 · Brigham City, UT
This park at Promontory Summit marks the spot where the Central Pacific and Union Pacific rails met on May 10, 1869. You can walk to the Last Spike site a short distance from the visitor center, see replicas of the Jupiter and No. 119 locomotives, and drive the East and West auto tours along the original grade. The Big Fill Trail has a self-guided audio tour. The site is remote, with no fuel or food within 27 miles, so come prepared.
The closest stops to Golden Spike National Historical Park, ordered by straight-line distance.