Sullivan Expedition Against the Iroquois Indians, 1779 - Sheshecunnunck (PLAQUE)
Sheshequin Township, Bradford County, Pennsylvania
Marker Inscription
15 miles from Standing Stone, seventh and last encampment of Sullivan's army on march from Wyoming to Teaoga August 10, 1779, lay on these lowlands by the river.
Erected by Pennsylvania Historical and Museum Commission
The Story
In August 1779 General John Sullivan marched his Continental army up the Susquehanna Valley on a campaign to break the power of the Iroquois Confederacy, which had raided frontier settlements as Britain's allies. On the night of August 10 the army made its seventh and final encampment before reaching Teaoga on these river lowlands at Sheshecunnunck. The march was one leg of a systematic expedition that would destroy dozens of Iroquois towns and cornfields.
Why it matters
It traces the route of a campaign that decisively weakened the Iroquois Confederacy, a turning point with lasting consequences for the Native nations of the Northeast.
The story behind this marker
AI contextThe era
In August 1779, the upper Susquehanna Valley became the highway for a Continental army on the march. The Revolution's northern frontier had been convulsed by years of raids, and the American command answered with a large, deliberate campaign aimed at the heart of the Iroquois Confederacy, several of whose nations fought alongside the British.
The expedition was led by General John Sullivan, whose name the campaign still carries. His army moved north from the Wyoming Valley toward Teaoga, following the river through country that was a patchwork of Native towns, cornfields, and the lowland flats along the water where an army could camp and rest.
This was Iroquois homeland, long settled and cultivated. The march passed through a landscape shaped by generations of Native life, and the campaign's purpose — and its consequences — would fall most heavily on the people who lived there.
People & events
This marker pinpoints a single night on that long march. On August 10, 1779, roughly fifteen miles up from Standing Stone, Sullivan's army made its seventh and final encampment before reaching Teaoga, spreading out across these river lowlands at the place recorded here as Sheshecunnunck.
An encampment is easy to overlook in the grand story of a campaign, but it was the fundamental unit of an eighteenth-century march. Thousands of men, along with their supplies and animals, had to find level ground near water each night — and the flats along the Susquehanna offered exactly that. This was the last such stop before the army reached its next objective.
The restraint of the inscription is worth honoring. It records what can be firmly known: the distance, the date, the sequence, and the place. It marks the passage of an army through the valley without embroidering the moment, letting the fact of the encampment stand as its own quiet testimony.
Its place in the American story
The Sullivan Expedition was one of the most consequential campaigns of the Revolution's frontier, systematically destroying dozens of Iroquois towns and the cornfields that sustained them. Its aim was to break the Confederacy's ability to wage war, and in that it succeeded, with results that reshaped the region for generations.
That success carried a heavy human cost for the Native nations of the Northeast, whose communities were burned and whose people were driven from lands they had lived on for centuries. The campaign is remembered today not only as a military operation but as a turning point in the long, painful history between the young United States and the Iroquois.
A marker for a single night's camp keeps that larger story honest by keeping it concrete. Campaigns are made of days and miles and river flats like this one. To stand where the army slept is to be reminded that a decisive, destructive expedition was also a physical journey up a valley, one encampment at a time.
If you visit
This marker sits in Sheshequin Township, on the low ground beside the Susquehanna where the land opens out toward the river. The flats that made good camping for an army still read clearly in the landscape, and picturing thousands of soldiers spread across them is the whole point of coming here.
Stand near the river and take in how the valley channels movement north and south. An army, like the people who lived here before it, followed the water and the level ground. The geography that dictated the route is still perfectly legible, which makes this a fine place to understand how such a march actually unfolded.
Because it names a specific stop on a specific day, this marker is best experienced as part of the chain of Sullivan Expedition sites strung along the valley. Visited in sequence, they let you follow the army's path northward toward Teaoga, turning a line on a historical map into a road trip you can drive — with room, at each stop, to remember whose homeland the road passed through.
Written by AI to add context, grounded in the marker’s inscription and the historical record. The inscription above is the original, unaltered text.
Plan your visit
NearbyMake a day of it — museums, food, and places to stay near this marker.
Museums & culture
- Tioga Point Museum4.9 mi away
- Sayre Historical Society7.0 mi away
- S.R.A.C. Susquehanna River Archaeological Center8.5 mi away · 343 Broad Street, Waverly, NY
Places to stay
- Comfort Inn7.1 mi away · 2160 Elmira Street, Sayre, PA
- Candlewood Suites7.7 mi away · 2775 North Elmira Street, Sayre, PA
- Hampton Inn Sayre8.0 mi away · 3080 Elmira Street, Sayre, PA
- Econo Lodge8.1 mi away · Spring Street, Sayre, PA
Places data © OpenStreetMap contributors. Hours and details change — call ahead.
Own a business near here? Add it to the map.
Related people
- · General John Sullivan
Related events
- · Sullivan Expedition
Themes & tags
Nearby & related markers
Sullivan's March
Ulster Township, PA · est. 1949
In August 1779, General John Sullivan led a Continental Army expedition up the Susquehanna Valley, camping on the Sheshequin Flats below this point on the ninth and tenth before pressing on to Tioga Point. This was the seventh and final overnight stop of a hard march into Iroquois country. Sullivan's campaign, ordered by George Washington, aimed to break the power of the Six Nations who had allied with the British on the frontier.
Teaoga & Queen Esther's Town - PLAQUE
Athens Township, PA · est. 1928
Where the Chemung meets the Susquehanna stood Teaoga, a Iroquois watch post guarding the southern approach to the confederacy's territory, and nearby the Delaware settlement remembered as Queen Esther's Town. The broad river flats were rich grazing land, but in September 1778 — amid the frontier warfare of the Revolution — Colonel Thomas Hartley's expedition swept up the valley and burned both towns. These raids were part of the escalating cycle of retaliation between Continental forces and Britain's Iroquois allies on the Pennsylvania frontier.
Fort Sullivan
Athens, PA · est. 1947
On August 18, 1779, General John Sullivan raised a fort on the high ground between the Chemung and Susquehanna rivers, commanding both waterways at once. With a supporting camp on the flats below, the post became the launching point for Sullivan's expedition into central New York — a scorched-earth campaign that broke the military power of the Tory and Iroquois alliance allied with Britain. The fort's brief life belied its role in one of the Revolution's most consequential frontier operations.
Sullivan Expedition Against the Iroquois Indians, 1779 - Teaoga (PLAQUE)
Athens, PA · est. 1929
Teaoga was a key Iroquois village at the forks of the rivers, and in August 1779 it became the staging ground for General John Sullivan's army during its campaign against the Six Nations. From roughly August 11 to 26 the Continental force encamped near here before pressing deeper into Iroquois country. This marker fixes the village's site relative to that fateful summer of the Sullivan Expedition.