Arkansas Post is one of the most historic places in Arkansas. From Wikipedia:
Arkansas Post National Memorial, located about 8 miles (13 km) southeast of Gillett, Arkansas, commemorates key events that occurred on site and in the vicinity: the first semi-permanent European settlement in the Lower Mississippi Valley (1686); an American Revolutionary War skirmish (1783); the first territorial capital of Arkansas (1819–1821); and the American Civil War Battle of Fort Hindman (1863).
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Arkansas Post was founded in 1686 by Henri de Tonti at the site of a Quapaw Indian village named Osotouy near where the Arkansas River enters the Mississippi River. This place is where the first recorded Christian services occurred in what is now present-day Arkansas. The site became a strategic point for France, Spain, the United States, and the Confederate States at different times during its history.
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During the American Civil War, the Post became an important strategic site, as it was the confluence of two major rivers. In 1862, the Confederate Army constructed a massive earthwork known as Fort Hindman, named after Confederate General Thomas C. Hindman. On January 9–11 of 1863, Union forces conducted an amphibious assault on the fortress backed by ironclad gunboats, and destroyed both the fort and the civilian areas of Arkansas Post.
Quite honestly though, there's not much of anything left. All of the settlements are gone, and the fort is now underneath the Arkansas River. However, the area is actually one of the best places in the state for wildlife photography. There are a lot of deer, a bald eagle nest, Armadillios, and kinds of other critters. Oh, and alligators! I haven't been lucky enough to photograph a wild alligator there yet, but I plan to return soon. I saw one, or rather he saw me, very briefly on my last visit and then played hide and seek.
This picture below was recently licensed:
10-pound Parrott rifle at the Civil War era rifle pits at the Arkansas Post National Memorial in the Delta region of Arkansas