The Journals of Lewis & Clark: March 21, 1805
March 21, 1805
I return on the 21st and on my return I passed on the points of the high hills S. S. where I saw an emence quantity of Pumice Stone, and evident marks of the hills being on fire I collected some Pumice Stone, burnt Stone & hard earth and put them into a furnace, the hard earth melted and glazed the other two a part of which i, e, the Hard Clay became a Pumice-Stone, I also collected a Plant the root of which is a Cure for the Bite of a mad dog & Snake which I shall Send- Mr. Haney (I think it grows in the Blue R Barrens) the Indians make large Beeds of Different Colours-
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.