During the 1800’s, keelboats were used for both upriver and downriver navigation, propelled using either oars or poles, while flatboats could only go downriver.
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During the 1800’s, keelboats were used for both upriver and downriver navigation, propelled using either oars or poles, while flatboats could only go downriver.
Source: tatoeba (10614424)
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.