Discovering the Lewis and Clark Expedition: 10 intriguing insights
Oct 23, 2026
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In 1803, Thomas Jefferson bought 828,000 square miles of land
from Napoleon's France.
Known as the Louisiana Purchase, the transaction
drastically increased the size of the United States.
The general public had mixed emotions about the deal.
So to help win support, Jefferson
ordered an expedition through the territory
all the way to the Pacific Ocean.
That expedition would be led by Meriwether Lewis and William
Clark.
Today, we're going to tell you a whole lot of cool facts
about the Lewis and Clark Expedition.
What the hell we sitting around yammering for?
Let's go on an expedition.
The laws of the United States gave certain kinds of people
certain rights and denied them to others.
But once the Lewis and Clark Expedition
left official US territory, they were free to do things
as they pleased.
As such, they decided that every member of the Corps
would have an equal vote on every activity and decision.
This was particularly important for the man
called York, who was the only African-American of the group.
In the United States, he was Clark's slave.
But once the Corps was free of US law,
York was a free man and was treated as one.
He quickly became a highly valued member of the team.
Sacajawea, their famous Native American guide,
also got a vote and was allowed to make her own decisions.
She was their expert on the terrain,
and she saved the lives and property of various Corps
members on more than one occasion.
She was highly respected and was considered
a leader among the team.
The Corps was governed by kindness and respect,
And no one was limited by their origin, status, or ethnicity,
something that would not have been possible
within the jurisdiction of the United States.
Since medieval times, Europeans had
sought a shortcut that would allow
for easy transportation of people and goods
from the east to the west.
But until the creation of the Panama Canal in 1914,
no such route existed.
Sailing around Africa was slow and dangerous,
and the land route across Europe and Asia was even worse.
By the 19th century, nothing had changed,
and Thomas Jefferson held out hope
that such a passage might be found
on the west side of America.
Ascertaining whether the American continent possessed
a water route that led all the way to the east
was high among Jefferson's priorities
when he dispatched the Corps of Discovery.
It's known that Jefferson was highly disappointed when
he learned no such passage existed.
As a consolation prize, he did enjoy
many of the exotic items brought back from the journey,
and he actually used many
of them to decorate his home.
Other than Lewis and Clark themselves,
the Corps' most famous member is definitely
the Native American guide Sacagawea.
In fact, there are more statues of Sacagawea
than any other woman from American history.
Her reputation was well-deserved,
and her guidance was absolutely key to the expedition's
success.
While her job was technically to be the Corps' guide,
Sacagawea did so much more.
She also helped identify edible and medicinal plants,
as well as landmarks that made it
possible to measure the distance the group was covering.
But that's not all.
She was also a bit of an action hero.
The Corps traveled by boat as often as possible,
and some of those nautical trips were incredibly dangerous.
On one occasion, a boat was overturned,
and important items were thrown into the river.
With the river raging around her,
Sacagawea leaned over the side of the boat with her free hand
and rescued many of those lost items from the water.
And if that's not impressive enough,
she did all that while holding her own baby in her other arm.
One of the items she saved that day
is the famous journal of the expedition
that was kept by Lewis.
Sacagawea's mere presence was an aid to the Corps in ways
they didn't even understand at the time.
Many Native American cultures did not
include women in war parties, so they
believed the presence of Sacagawea
indicated that the Corps were peaceful travelers.
Moreover, many tribal warriors would not attack the group
because they traveled with a pregnant woman and later,
a mother and child.
Though well provisioned at the start of their journey,
the expedition found themselves running out of supplies
by the time they reached the Bitterroot range
of the Rocky Mountains.
Since it was the dead of winter, there
was no way to supplement their supplies
by hunting and fishing.
The team became so desperate at one point,
they were actually reduced to eating tallow candles.
The combination of the weather and the lack of food
nearly killed them all, but that was actually
the least of their worries.
The group had no way of knowing it,
but they were being watched by Nez Perce tribal scouts
and warriors, who were eager to finish them off
and take any belongings that might be valuable or useful.
Nez Perce oral tradition holds that a woman named Wakuwais
persuaded the tribe to help the strangers instead.
Why?
Shortly before the incident, she had
been kidnapped by a rival tribe and then rescued and returned
home by white men.
It is said she demanded the others,
do them no hurt.
The Lewis and Clark expedition set off
into unknown territories filled with unimaginable risks
and dangers.
So it's pretty remarkable that by the time all was said
and done, only one single member of the team died on the journey.
Three months into the trip, Sergeant Charles Floyd
became ill, complaining of nausea
and severe abdominal pains.
He had been the first to apply for the Corps,
so he was particularly well liked by both Lewis and Clark.
He was also better educated than most of the others
and was in better shape.
This being the case, everyone was surprised
when he was the first to falter.
Out on the frontier, there was little the team could do
and no one else to turn to.
Floyd's condition grew progressively worse.
Clark stayed by his side for the whole night
trying to help him.
And Lewis did indeed record that on August 15,
Floyd seemed to recover a little bit.
However, shortly after that, he became even more ill
and finally passed away on that same day.
According to Lewis, Floyd met his end with composure.
Though no one knows for sure, it's
believed Floyd likely died of a burst appendix.
Floyd was buried on a bluff overlooking the Missouri River.
A red cedar marker bearing his name, title, and life dates
was placed at his grave.
The location was marked on one map drawn by Lewis
as Floyd Bluff.
Despite being only about 16 years old,
Sacagawea was married to a French fur trader
and was already pregnant with her first child.
She was doted on by the whole Corps, who
thought of her as family and had nicknamed her Janie, a name she
is known to have approved of.
Her labor, which occurred at a stop in North Dakota,
was long and difficult, and the entire Corps
waited on her like nervous fathers.
Luckily, the young woman made it through
and gave birth to a healthy baby boy
who she named Jean-Baptiste, or John the Baptist.
The child quickly acquired the name Pompey in honor
of the Roman general and was soon known just as Pomp.
The men of the expedition took turns babysitting Pomp
and fashioning toys to entertain him.
Jean-Baptiste took the whole trip
with the rest of the corps.
And when the expedition ended, Sacagawea and her husband
left him with Clark while they traveled
to visit various native villages in North Dakota.
They were all so close, Clark himself raised the child
and paid for his education.
In August of 1806, a wagon filled
with findings from the first leg of the expedition
arrived in Washington, DC.
It was the first and only thing that
had ever been heard from the Corps since they departed,
leading many to assume they had perished.
Some newspapers even printed articles
suggesting the team had been killed
by wild animals, Native American tribes, or the elements.
The Lewis and Clark expedition left its mark
on American history, but it didn't leave much
of a physical mark on America itself.
While the members of the expedition
did enjoy carving their names into trees
along the way, all of those trees are now gone.
This includes a famous grove near the Pacific Ocean,
where every member of the Corps of Discovery
was known to have left their mark.
In fact, the only remaining trace of the journey
is an inscription carved by Clark into what
is known as Pompey's Pillar.
The pillar is a large rock formation
located in Montana, which was named after, you guessed it,
Sacagawea's son.
While preparing for the expedition,
Lewis purchased a Newfoundland puppy,
whose name was unclear to scholars for over a century.
How'd that happen?
Well, the name only appears a single time in Lewis's journal.
And at some point, it got smudged.
Historians eventually decided the name read Scannon.
But it was an unusual name, and no one
could figure out its meaning.
Today, it's known that Lewis's dog was actually
called Seaman, likely because his breed is
known for being great swimmers and were often
trained to rescue people who were drowning.
Lewis records several occasions on which Seaman saved corps
members from a watery grave, and at least one occasion
where Lewis himself saved Seaman.
Seaman was beloved by the Corps, and he
was very protective of them, often acting as a watchdog.
In fact, when the expedition encountered its first grizzly
bear, Seaman tried to attack it.
On another occasion, he chased a buffalo
away from their campsite.
Many of the natives encountered along the trail
found the large, shaggy dog very impressive,
and at least one tried to buy him.
On a different occasion, a group of tribal teenagers
stole the dog under cover of darkness.
Lewis was so enraged, he tracked the thieves back
to their village and threatened to burn the whole thing
to the ground if he didn't get his dog back.
Very little is known about what happened to Seaman
after the expedition.
However, a book published claims that a well-known teacher
had visited a museum where he saw a large dog collar bearing
the inscription, the greatest traveler of my species.
My name is Seaman, the dog of Captain Meriwether Lewis,
whom I accompanied to the Pacific Ocean
through the interior of the continent of North America.
Lewis wasn't just a keeper of detailed journals.
He was also a gifted artist.
His sketches of the plants, flowers,
and animals discovered by the Corps
were rendered in stunning detail and described meticulously.
The journals, which thanks to Sacagawea
and a long line of preservationists,
still exist today, are incredibly
precise and extremely neat.
The care taken is obvious and indicates Lewis never
sketched while exhausted, or being swarmed by mosquitoes,
or bounced along in the back of a wagon.
Today, these journals have been bound in leather
and are kept at the American Philosophical Society
in Philadelphia, where they can be viewed by appointment.
A journey that lasts for two years
is bound to make even the most seasoned frontiersman miss
his family.
And though most of the men were young and unmarried,
many had sweethearts back home.
One of the many ways the expedition members coped
with being away from their loved ones
was to name geographic sites along the trails
after the very people they missed.
Lewis carefully recorded all of these names in the maps
he drew in his journals.
The tradition began with the Bluff on River
named for aforementioned Sergeant Charles Floyd
after his death and continued throughout the journey.
In one particularly romantic instance,
William Clark is believed to have named the Judith River
after his own sweetheart, a woman named Julia Hancock.
After the expedition, he proposed, and she accepted.
They were married January 5, 1808.

