Blue limestone was only available from the mine developed by the French army east of Fort de Chartres.

Kaskaskia became the capital of Upper Louisiana and the French built Fort de Chartres in 1718.

Laclede was at Fort de Chartres until early April, recruiting French settlers from the east side villages.

In 1766 The British arrived and established a small detachment from Fort Chartres at Kaskaskia.

From 1766 through 1772, this rotating detachment was approximately 25 men under a junior officer, detached from Fort Chartres.

Illinois 155 is a two-lane road from Fort de Chartres all the way to Illinois 3.

Only a few were made out of stone (Fort de Chartres, Fort Niagara).

On October 10, 1765, he surrendered Fort de Chartres to the British.

It was also close to Fort de Chartres, a French stronghold.

Construction began on the first Fort de Chartres (in present-day Illinois) in 1718 and was completed in 1720.