When Thomas Jefferson funded the Lewis and Clark expedition, exploring the newly-purchased Louisiana territory was only part of his goal. Among other things, he ordered the explorers to keep an eye out for a herd of woolly mammoth roaming the Interior; the President didn't believe the pre-historic animal was extinct. L&C managed to return with fossilized mammoth bones.
Was a joke. Thats an old movie with Chris Farley and Matthew Perry racing Lewis and Clark to the Pacific. 100 bucks LaSalle has seen it.
I'm so ignorant of Almost Heroes I thought you were referring to a TV show I had never seen, maybe on A&E.