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Thomson Causeway
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Overview Thomson Causeway provides the unique experience of island camping on the great Mississippi River and it's well worth a try! The western edge of the recreation area offers visitors an…
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Recreation.gov1 data sourceUpdated Mar 2026
Nearby Ramps
RM 527.0: Thomson Causeway Recreation Area
Carroll, Illinois
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RM 524.0: Mickelson's Landing
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RM 531.1: Big Slough Access
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RM 522.7: Lock & Dam 13 Public Use Area
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Thomson Causeway is a public boat ramp in Thomson, Carroll County, Illinois (61285). GPS coordinates: 41.9517°N, 90.1108°W.