Boulder, Illinois

Boulder, Illinois
Unincorporated community
Boulder, Illinois Show map of Illinois Boulder, Illinois Show map of the United States
Coordinates: 38°41′48″N 89°13′32″W / 38.69667°N 89.22556°W / 38.69667; -89.22556
Country	United States
State	Illinois
County	Clinton
Elevation [1]	466 ft (142 m)
Time zone	UTC-6 (Central (CST))
• Summer (DST)	UTC-5 (CDT)
Area code	618
GNIS feature ID	404717[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.

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