Fort Schlosser was a fortification built in Western New York in the USA around 1760 by British Colonial forces, in order to guard the upper entrance to the portage around Niagara Falls, near the Porter-Barton Dock. It was named for its first commander, Captain Schlosser, a practice that was common in the British Army. The fort replaced Fort Petite Niagara, a small fortification built by the French which was burned by the retreating French prior to the Siege of Fort Niagara in 1759. The original chimney from Fort Petite Niagara was incorporated into Fort Schlosser. Fort Grey guarded the end of the portage in Lewiston, NY. Fort Niagara guards the mouth of the Niagara where it flows into Lake Ontario.
