Activities in Utah › Historic Sites › Thompson Springs
Colorado State Line
- Where
- US-50, Mack, Thompson Springs, UT (Grand County)
Updated October 22, 2026
About Colorado State Line
Colorado State Line is one of 8 historic sites in Thompson Springs on Go Do, in Grand County. Within 30 miles there are 2 other historic sites, the nearest being Utah / Colorado Border (about 3.4 miles).
Common questions
Where is it?
US-50, Mack, Thompson Springs, Utah.
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