Oswego West Side Forts

Oswego West Side Forts (HM1FBY)

Location: Oswego, NY 13126 Oswego County
Buy New York State flags at Flagstore.com!
Country: United States of America
Buy United States of America flags at Flagstore.com!

N 43° 27.735', W 76° 31.2'

  • 0 check ins
  • 0 favorites

An Early French Target

— French and Indian War —

British Toehold on Lake Ontario

During the French and Indian War, the Oswego River was the only British controlled waterway into the Great Lakes. French commander-in-chief, the Marquis de Montcalm, recognizing its strategic importance, wrote that Oswego was: "... the key of the Upper Country by its communication with the Five Nations (the Iroquois Confederacy), Albany and the River Hudson; defended by three forts - Fort Ontario on the right bank of the river, Forts George and Chouaguen (Oswego) on the left bank as well as a species of an earthen crown-work, serving as an entrenchment camp, having also a good port and a well sheltered roadstead."

Fort George

Called Fort Beef or Fort Rascal, the unfinished Fort George, built of logs and earth, was little better than a cattle pen and was garrisoned by a provincial force known as "the Jersey Blues." It was built to protect Fort Oswego.

Fort Oswego

Fort Oswego was a castle-like stone fort, but its strong appearance masked its weaknesses: built on low ground, the masonry mortared with mud, the structure was vulnerable to artillery. It was garrisoned by the 50th and 51st Regiments of Foot.

West Bank Fortifications


A stone blockhouse called Fort Oswego is built to guard a growing trader's settlement and establishes England's first presence on the Great Lakes.


Seasonal trader's village thrives as up to 300 Dutch and English fur traders, in over 70 log huts, obtain furs from American Indians.


Fort Oswego is strengthened with an outer, U-shaped stone wall.


Fort Oswego's garrison of 8 men mutiny and place their lone officer in irons.


Fort Oswego is strengthened and Forts George and Ontario are built by Major General William Shirley. The Royal Navy's first Great Lakes squadron is built in the harbor.

Winter 1755-1756

The 700 troops left behind at the forts of Oswego are decimated by disease and starvation. Over half perish by spring.

Spring 1756

Troops are harassed by American Indian and Canadian raiders.

August 1756

Montcalm destroys all three forts, the trader's village, captures the British fleet and takes 1,700 prisoners


With more than 3,000 French, Indians, and Canadians, Montcalm's forces and artillery drove the British out of Fort Ontario. The British retreated across the river to the shelter at Fort Oswego.


1,500 Indians and Canadians waded across the river to surround the forts on the west side, while Montcalm's artillery was moved up to the high ground on the east side of the harbor to bombard Fort Oswego.


As British commander Colonel James Mercer prepared a break out attempt with 500 men, he was killed by a cannonball. Second-in-command, Lieutenant Colonel John Littlehales quickly sought a parley with the French and lost no time surrendering.


The British loss was catastrophic; three forts, 1,100 soldiers and sailors, 600 civilians including skilled craftsmen, the trader's village, the new fleet of seven ships, and over 100 pieces of ordnance.


Oswego was wiped from the map and Lake Ontario became French again. But, because of Montcalm's failure to hold onto this ground, the British would return and reoccupy Oswego in 1759.
Placed ByGreat Lakes Seaway Trail
Marker ConditionNo reports yet
Date Added Wednesday, October 15th, 2014 at 2:44am PDT -07:00
Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.
Locationbig map
UTM (WGS84 Datum)18T E 377039 N 4813271
Decimal Degrees43.46225000, -76.52000000
Degrees and Decimal MinutesN 43° 27.735', W 76° 31.2'
Degrees, Minutes and Seconds43° 27' 44.1" N, 76° 31' 12" W
Driving DirectionsGoogle Maps
Area Code(s)315
Which side of the road?Marker is on the right when traveling West
Closest Postal AddressAt or near 51 Lake St, Oswego NY 13126, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

Is this marker missing? Are the coordinates wrong? Do you have additional information that you would like to share with us? If so, check in.

Nearby Markersshow on map
Check Ins  check in   |    all

Have you seen this marker? If so, check in and tell us about it.

Comments 0 comments

Maintenance Issues
  1. Is this marker part of a series?
  2. What historical period does the marker represent?
  3. What historical place does the marker represent?
  4. What type of marker is it?
  5. What class is the marker?
  6. What style is the marker?
  7. Does the marker have a number?
  8. What year was the marker erected?
  9. This marker needs at least one picture.
  10. Can this marker be seen from the road?
  11. Is the marker in the median?