Boulder, Illinois

Boulder, Illinois
Unincorporated community
Boulder, Illinois is located in Illinois
Boulder, Illinois
Boulder, Illinois
Location within Illinois
Boulder, Illinois is located in the United States
Boulder, Illinois
Boulder, Illinois
Location within the United States
Coordinates: 38°41′48″N 89°13′32″W / 38.69667°N 89.22556°W / 38.69667; -89.22556
CountryUnited States
StateIllinois
CountyClinton
Elevation
[1]
466 ft (142 m)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
Area code618
GNIS feature ID404717[1]

Boulder is an unincorporated community in Clinton County, Illinois, United States. Boulder is located on the eastern shore of Carlyle Lake; a railroad line crosses the lake from Boulder to Keyesport.[2][3][4][5]

References

  1. 1 2 U.S. Geological Survey Geographic Names Information System: Boulder, Illinois
  2. ↑ "Boulder boat show". The Breese Journal. July 15, 2021. pp. A7. Retrieved July 25, 2026.
  3. ↑ "Blankets for a good cause". The Breese Journal. November 24, 2011. pp. A2. Retrieved July 25, 2026.
  4. ↑ "Boulder store". The Belleville News-Democrat. April 8, 2001. p. 49. Retrieved July 25, 2026.
  5. ↑ "Get Maps". USGS Topoview. Retrieved July 25, 2026.


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