By July 25, 1806, Clark was in the vicinity of the Indian landmark which he named "Pompys Tower," now called Pompey's Pillar, east of Billings, Montana. The view was great, but the neighbors were noisy.

emence herds of Buffalow about our [camp] as it is now running [rutting] time with those animals the bulls keep Such a grunting nois which is very loud and disagreeable Sound that we are compelled to Scear them away before we can Sleep. the men fire Several Shot at them and Scear them away.

--Joseph Mussulman