On the Bozeman Trail between 1866 and 1868, the sequence temporarily reversed.
The road lost traffic.
The forts became liabilities.
The Army withdrew.
Native control was formally recognized.
The road closed.
That reversal helps explain why the outcome stands out in American history.
It also explains why Red Cloud waited until November
If the normal expansion process could reverse once, Red Cloud wanted to see it happen physically.
The buildings had to empty.
The soldiers had to leave.
Only then did the treaty prove that Article XVI was more than negotiating language.
By the time Red Cloud arrived at Fort Laramie in November, the posts he had opposed were no longer active Army positions.
His mark on the document came after that evidence.
The National Archives preserves more than a signature page
The treaty is valuable because it allows modern readers to see exactly what federal representatives agreed to.
Memory can change.
Later political arguments can change.
The handwritten document does not.
It records the words.
It records the signatures and marks.
It records the territorial commitments.
It records Article XII's restrictions on future land cessions.
It records Article XVI's unceded territory and abandonment requirement.
The National Archives identifies the treaty under Record Group 11 and makes the transcript available alongside images of the document. (National Archives)
The paper turns a story about frontier warfare into a legally documented settlement.
The archival wording is stronger than many summaries
Modern summaries often say the treaty “allowed the Indians to keep hunting.”
That is much weaker than Article XVI.
The article did not simply grant a recreational privilege.
It recognized a huge region as unceded territory.
Modern summaries sometimes say the government “closed the forts.”
Again, the original wording matters.
The United States agreed to abandon the military posts inside the territory and close the road to Montana.
The distinction is important because the treaty was not a temporary Army redeployment order.
It was part of a negotiated peace.
The words also reveal how fragile the agreement was
Article XVI depended on peace with all the relevant Sioux bands.
Article I depended on both sides keeping peace.
Other articles depended on federal delivery of goods and services.
Still others depended on Native communities changing patterns of residence and subsistence.
Every provision created obligations.
If either side believed the other was violating them, the settlement could weaken.
That is exactly what happened during the following decade.
The treaty was strong on paper.
Its enforcement existed inside a rapidly changing western economy.
Gold repeatedly changed American treaty behavior
The Bozeman Trail conflict itself had been intensified by Montana gold.
The later Black Hills crisis followed another gold discovery.
That pattern was not accidental.
Mining rushes created sudden populations with strong political demands.
Miners entered remote areas faster than federal officials could negotiate new arrangements.
Once thousands of American citizens occupied treaty-protected territory, the government faced a political choice.
Remove them.
Ignore them.
Or change the treaty arrangement.
Again and again, expansion pressures pushed toward the third option.
That history makes the 1868 withdrawal even more unusual.
For once, during Red Cloud's War, Washington chose to remove its own military route instead.
The result lasted long enough to matter, but not long enough to settle the Plains
The Bozeman Trail forts were gone after 1868.
The larger contest continued elsewhere.
The transcontinental railroad opened new movement corridors.
Federal agencies expanded.
Reservation boundaries changed.
Buffalo herds declined catastrophically during the following years.