The Journals of Lewis & Clark: Clark, March 21, 1805
Clark, March 21, 1805
21st March Thursday 1805
a Cloudy Day Some snow, the men Carried the remaining the 2 remained Canoes to the River, all except 3 left to take care & complete the Canoes, returned to the fort with their baggage, on my return to day to the Fort I came on the points of the high hills, Saw an emence quantity of Pumice Stone on the Sides & foot of the hills and emence beds of Pumice Stone near the Tops of the hills with evident marks of the Hill haveing once been on fire, I collected Some the differnt i e Stone Pumice Stone & a hard earth and put them into a furnace the hard earth melted and glazed the others two and the hard Clay became a pumice Stone Glazed. I collected Some plants &c.