Sacagawea’s final journey home: the Yellowstone River crossing of 1806

Sacagawea’s Last Trek to Her Shoshone Homeland

Pompeys Pillar National Monument stands where Sacagawea came home.

In 1806, the seventeen-year-old Shoshone guide returned to her ancestral hunting grounds along the Yellowstone River after years of captivity and exploration.

She guided Clark through mountain passes using childhood memories, pointing out Beaverhead Rock and familiar landmarks that lifted the expedition’s spirits.

Clark named the towering sandstone pillar after her son Jean Baptiste, calling him his “little dancing boy, Pomp. ” But this homecoming was brief.

Sacagawea died six years later at just twenty-five, never seeing her homeland again. This is her story of return and loss, and where you can walk in her footsteps today.

Stolen from Home: A Young Girl’s Forced Journey East

Hidatsa raiders grabbed 12-year-old Sacagawea from her Lemhi Shoshone home near today’s Salmon, Idaho around 1800. During the attack, they killed four Shoshone men, four women, and several boys.

They took the young girl 600 miles east to Hidatsa villages near what we now call Bismarck, North Dakota. For the Shoshone, this land held sacred places and ancient hunting grounds they’d used for over 11,000 years.

The Yellowstone River region and spots like Pompeys Pillar marked important stops for Shoshone seasonal travels.

The Journey West Begins with a Two-Month-Old Baby

Seventeen-year-old Sacagawea left Fort Mandan on April 7, 1805, carrying her tiny two-month-old son Jean Baptiste. She joined Lewis and Clark’s group as their translator, the only woman among all the men.

Tribes they met saw her and the baby as signs of peace. For Sacagawea, heading west meant moving toward home after more than four years away.

William Clark grew fond of both mother and child, nicknaming the baby “Pomp” during their travels together.

A Familiar Rock Formation Signals She’s Getting Closer to Home

Near today’s Twin Bridges, Montana, Sacagawea spotted something that made her heart jump on August 8, 1805.

She told Lewis she knew Beaverhead Rock from her childhood – this odd formation shaped like a beaver’s head meant they were getting close to her people’s summer camp.

For many years, this rock had guided Shoshone travelers looking for hunting grounds. After five years away from home, this landmark connected her back to her past.

Her Brother Was Now the Chief of Their Tribe

On August 17, 1805, Sacagawea got a huge surprise when she found out Chief Cameahwait was her brother.

Their happy reunion turned sad when she learned most of her family had died while she was gone, with only two brothers still alive. She took in her sister’s son as her own child.

Her brother helped the trip succeed by giving them horses and guides for crossing the mountains. The family gathering ended quickly as the group needed to push on toward the Pacific.

She Remembered Every Trail from Her Childhood

When the group headed back east in July 1806, Sacagawea guided Clark through land she knew perfectly.

She pointed out Shoshone paths she walked as a young girl, leading Clark through mountain passes unknown to the Americans. Clark called her his “pilot” through this tough country.

Her knowledge came from years of moving with her people between hunting and gathering spots. Every hill and valley held deep meaning beyond simple directions.

Her Mountain Pass Recommendation Proved Perfect

On July 13, 1806, Sacagawea told Clark about a better way to cross into the Yellowstone River basin.

She said, “The Indian woman who has been of great service to me as a pilot through this Country recommends a gap in the mountain more South.”

Clark trusted her, and the route through what we now call Bozeman Pass worked perfectly. Years later, the Northern Pacific Railway picked this same path through the mountains.

Ancient Pathways Led Her Through Montana Wilderness

Clark’s group followed Sacagawea along old Shoshone travel routes across southwestern Montana. She knew exactly where to find water and could spot landmarks her people had used for many generations.

These paths linked winter villages to summer buffalo hunting grounds and places for gathering plants. Shoshone parents taught children these routes through stories and experience.

People had walked these trails for over 11,000 years before them.

Clark Named a Landmark After Her Little Boy

Clark climbed a 200-foot sandstone rock along the Yellowstone River on July 25, 1806, and carved his name into it. He called this place Pompey’s Tower (now Pompeys Pillar) after Sacagawea’s 18-month-old son.

Clark often called Jean Baptiste his “little dancing boy, Pomp,” showing how close he felt to the child.

The naming honored both the toddler who traveled from North Dakota to the Pacific Ocean and back, and his mother who carried him the whole way.

Her Circle Home Was Complete But Bittersweet

Sacagawea guided the group safely back to the Hidatsa-Mandan villages on August 14, 1806. She had traveled thousands of miles in a giant loop through her ancestral lands and back.

Though she finished this amazing journey, coming back felt incomplete since she remained far from her true Lemhi Shoshone homeland. William Clark saw how special Jean Baptiste was and offered to handle his education.

She Said Goodbye to Her Son for the Last Time

In 1811, Sacagawea and her husband Charbonneau brought five-year-old Jean Baptiste to St. Louis.

They left him with William Clark, who promised to raise and teach the boy like his own son. Henry Brackenridge wrote that year that Sacagawea “had become sickly and longed to revisit her native country.”

Her health was getting worse, and she deeply wanted to return to her Lemhi Shoshone homeland one last time. She never saw her beloved son again.

Her Life Ended Far From the Mountains She Loved

Sacagawea died on December 20, 1812, at Fort Manuel, hundreds of miles away from her Shoshone homeland.

John Luttig wrote in his journal: “This Evening the Wife of Charbonneau a Snake Squaw, died of a putrid fever she was a good and best Woman in the fort, aged about 25 years she left a fine infant girl.”

She never got to see her Lemhi Shoshone homeland again or reunite with her son Jean Baptiste.

Her short life ended at just 25 years old, after years of separation from her people, showing remarkable resilience while helping bridge two very different worlds.

William Clark kept his word and later took in both her children, raising them as he had promised.

Visiting Pompeys Pillar National Monument, Montana

Pompeys Pillar National Monument is 25 miles east of Billings at Interstate 94 Exit 23. You’ll pay $7 per vehicle or use your America the Beautiful pass.

Summer 2025 hours are Thursday through Saturday, 9am-4pm for both gates and visitor center. Walk the 200-step boardwalk to see Clark’s signature carved in the rock and enjoy Yellowstone River views.

When gates are closed, you can still walk in free during daylight hours.

This article was created with AI assistance and human editing.

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