The challenges that faced the Lewis and Clark expedition of the western United States are detailed.
- Tuesday, July 9 from 8:00 p.m. - 10:00 p.m. on OPB TV
- Thursday, July 11 from 1:00 a.m. - 3:00 a.m. on OPB TV
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- Saturday, April 12 from 4:00 a.m. - 6:00 a.m. on OPB PLUS