 Dalton is located at (39.397130, -92.991248).According to the United States Census Bureau, the village has a total area of , all land.Lewis and Clark made camp at what would later be known as the Cut-Off on June 12, 1804, and it was here that the expedition met with Pierre Dorion, a man who had reportedly been with the Sioux for 20 years and was thought to have some influence upon them.