<Li> October 13: Pvt . John Newman tried for insubordination (who was prompted by Reed) and received 75 lashes . Newman was discarded from the permanent party . </Li> <Li> October 24: Met their first Mandan Chief, Big White . Joseph Gravelins acted as interpreter . </Li> <Li> October 24: Expedition reaches the earth - log villages of the Mandans and the Hidatsas . The captains decide to build Fort Mandan across the river from the main village . </Li> <Li> October 26: Rene Jessaume lived with Mandan for more than a decade, hired as Mandan interpreter . Hugh McCracken a trader with the North West Company . Francois - Antoine Larocque, Charles MacKenzie also visited L&C . </Li>

Who led the second major expedition into the american west