a fort built by the French in 1754 near the confluence of French Creek with the Allegheny River, at present-day Franklin, in northwest Pennsylvania. The fort was part of a line that included Fort Presque Isle, Fort Le Boeuf, and Fort Duquesne. The fort was built on a hill, 60 yards west of the Allegheny River. The fort was in the form of a parallelogram, abo...

a fort built by the French in 1754 near the confluence of French Creek with the Allegheny River, at present-day Franklin, in northwest Pennsylvania. The fort was part of a line that included Fort Presque Isle, Fort Le Boeuf, and Fort Duquesne. The fort was built on a hill, 60 yards west of the Allegheny River. The fort was in the form of a parallelogram, about 75 by 105 feet (32 m). The curtain was made of hewed timber, stacked lengthwise. The four corners had bastions in the form of polygons.

Five-sided Fort Macon is constructed of brick and stone. Twenty-six vaulted rooms (also called casements) are enclosed by outer walls that are 4.5 feet (1.4 m) thick. Fort Macon was built as part of the Third System of US fortifications, and was preceded by Fort Hampton of the Second System. The Battle of Fort Macon was fought there during March and April 18...

Five-sided Fort Macon is constructed of brick and stone. Twenty-six vaulted rooms (also called casements) are enclosed by outer walls that are 4.5 feet (1.4 m) thick. Fort Macon was built as part of the Third System of US fortifications, and was preceded by Fort Hampton of the Second System. The Battle of Fort Macon was fought there during March and April 1862.

the first permanent U.S. military fortification on the Upper Mississippi. Fort Madison was the site of Black Hawk's first battle against U.S. troops, the only real War of 1812 battle fought west of the Mississippi. It was also the location of the first U.S. military cemetery in the upper Midwest. The fort was named for James Madison, fourth President of the ...

the first permanent U.S. military fortification on the Upper Mississippi. Fort Madison was the site of Black Hawk's first battle against U.S. troops, the only real War of 1812 battle fought west of the Mississippi. It was also the location of the first U.S. military cemetery in the upper Midwest. The fort was named for James Madison, fourth President of the United States.

the encampment which the Lewis and Clark Expedition built for wintering over in 1804-1805. The encampment was located on the Missouri River approximately twelve miles from the site of present-day Washburn, North Dakota, which developed later. The precise location is not known for certain and is believed now to be under the water of the river. A replica of th...

the encampment which the Lewis and Clark Expedition built for wintering over in 1804-1805. The encampment was located on the Missouri River approximately twelve miles from the site of present-day Washburn, North Dakota, which developed later. The precise location is not known for certain and is believed now to be under the water of the river. A replica of the fort has been constructed near the original site.

a fort on West Ship Island along the Mississippi Gulf Coast of the United States. It was built following the War of 1812, with brick walls during 1859-1866, and remained in use until 1903. Currently, it is a historical tourist attraction within the Gulf Islands National Seashore. The fort is located about halfway along the north shore of West Ship Island, ne...

a fort on West Ship Island along the Mississippi Gulf Coast of the United States. It was built following the War of 1812, with brick walls during 1859-1866, and remained in use until 1903. Currently, it is a historical tourist attraction within the Gulf Islands National Seashore. The fort is located about halfway along the north shore of West Ship Island, near a boat pier.

developed in colonial French Louisiana (New France) in April 1699 along the Gulf of Mexico. (at present-day Ocean Springs, Mississippi). Fort Maurepas was designated temporarily as the capital of Louisiana (New France) in 1719. The capital was being moved from Mobile (in present-day Alabama) up the Mississippi River to New Orleans to protect it from hurrican...

developed in colonial French Louisiana (New France) in April 1699 along the Gulf of Mexico. (at present-day Ocean Springs, Mississippi). Fort Maurepas was designated temporarily as the capital of Louisiana (New France) in 1719. The capital was being moved from Mobile (in present-day Alabama) up the Mississippi River to New Orleans to protect it from hurricanes. Government buildings in the latter city were still under construction.

an early American log frontier fort situated near the confluence of the Ohio River and the Beaver River in what is now Beaver, Pennsylvania. The fortress was constructed in 1778 under the direction of Lt. Col. Cambray-Digny, a French engineer, and named in honor of General Lachlan McIntosh. The fortress was the site of the signing of the Treaty of Fort McInt...

an early American log frontier fort situated near the confluence of the Ohio River and the Beaver River in what is now Beaver, Pennsylvania. The fortress was constructed in 1778 under the direction of Lt. Col. Cambray-Digny, a French engineer, and named in honor of General Lachlan McIntosh. The fortress was the site of the signing of the Treaty of Fort McIntosh on January 21, 1785. It was occupied until it was abandoned in 1791. After the Revolution, the fort was the home of the First American Regiment, the oldest active unit in the United States Army.

a United States Army post located on the tip of Greenleaf Point, the peninsula that lies at the confluence of the Potomac River and the Anacostia River in Washington, D.C. To the peninsula's west is the Washington Channel, while the Anacostia River is on its south side. Originally named Washington Arsenal, the fort has been an army post for more than 200 yea...

a United States Army post located on the tip of Greenleaf Point, the peninsula that lies at the confluence of the Potomac River and the Anacostia River in Washington, D.C. To the peninsula's west is the Washington Channel, while the Anacostia River is on its south side. Originally named Washington Arsenal, the fort has been an army post for more than 200 years, third in length of service, after the United States Military Academy at West Point and the Carlisle Barracks.

a United States fortification along the Maumee River in Ohio during the War of 1812. The British army, supported by Tecumseh's Confederacy, failed to capture the fort during the Siege of Fort Meigs. It is named in honor of Ohio governor Return J. Meigs, Jr., for his support in providing General William Henry Harrison with militia and supplies for the line of...

a United States fortification along the Maumee River in Ohio during the War of 1812. The British army, supported by Tecumseh's Confederacy, failed to capture the fort during the Siege of Fort Meigs. It is named in honor of Ohio governor Return J. Meigs, Jr., for his support in providing General William Henry Harrison with militia and supplies for the line of forts along the Old Northwest frontier.

a fort built on the Maumee River at the eastern edge of the present-day city of Maumee, Ohio, and southwest of the present-day city of Toledo, Ohio. It was built by the British on United States territory: the terms of the Treaty of Paris that ended the American Revolutionary War clearly assigned the territory to the United States, but the British refused to ...

a fort built on the Maumee River at the eastern edge of the present-day city of Maumee, Ohio, and southwest of the present-day city of Toledo, Ohio. It was built by the British on United States territory: the terms of the Treaty of Paris that ended the American Revolutionary War clearly assigned the territory to the United States, but the British refused to evacuate their forces from the West, claiming that the USA had failed to comply with the terms relating, e.g., to compensating Loyalists for their loss of property and permitting their return unmolested, paying debts to British merchants, etc. (These and related disputes were settled by the Jay Treaty.) In 1794 the British built Fort Miami (Miamis) to block Gen. Anthony Wayne's advance on Detroit and to encourage the Ohio Indians in their resistance to U.S. penetration north and west of the Ohio River. The fort was a log stockade, which had four bastions, each capable of mounting four cannon, a river battery, barracks, officers' quarters, supply buildings, and various shops. A defensive ditch, 20 to 25 feet deep, ran along the land side of the fort.

commissioned in 1771 and sits on Mud Island (or Deep Water Island) on the Delaware River below Philadelphia, Pennsylvania near Philadelphia International Airport. During the American Revolutionary War, the British Army bombarded and captured the fort as part of their conquest of Philadelphia in autumn 1777. The United States Army began to rebuild the fort in...

commissioned in 1771 and sits on Mud Island (or Deep Water Island) on the Delaware River below Philadelphia, Pennsylvania near Philadelphia International Airport. During the American Revolutionary War, the British Army bombarded and captured the fort as part of their conquest of Philadelphia in autumn 1777. The United States Army began to rebuild the fort in 1794 and continued to garrison and build on the site through the 19th century.

originally named Camp Colorado when it was established on April 19, 1859 by Lieutenant Colonel William Hoffman during the Mohave War. It was located on the east bank of the Colorado River, at Beale's Crossing, near the head of the Mohave Valley in Mohave County, Arizona by the recommendation of Lieutenant Edward Fitzgerald Beale. After the end of the Indian ...

originally named Camp Colorado when it was established on April 19, 1859 by Lieutenant Colonel William Hoffman during the Mohave War. It was located on the east bank of the Colorado River, at Beale's Crossing, near the head of the Mohave Valley in Mohave County, Arizona by the recommendation of Lieutenant Edward Fitzgerald Beale. After the end of the Indian Wars, the fort was transferred to the Bureau of Indian Affairs in 1890. In 1935 it was transferred to the Fort Mojave Indian Reservation; the fort is administered by the state of Arizona.

The first fort on the site was constructed in 1741 and used in the French and Indian War to protect a plantation owned by Captain Mark Carr. The next fort at the site was constructed in 1756 at the encouragement of locals who were being attacked during uprising of Creek Indians in the era during the French and Indian War. Fort Morris was attacked by the Brit...

The first fort on the site was constructed in 1741 and used in the French and Indian War to protect a plantation owned by Captain Mark Carr. The next fort at the site was constructed in 1756 at the encouragement of locals who were being attacked during uprising of Creek Indians in the era during the French and Indian War. Fort Morris was attacked by the British on January 9, 1779 and was taken the next day. The fort fell into disrepair once again in the years following the Revolution. Fort Defiance was constructed on the site of the former Fort Morris in 1814.