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Fort Defiance State Park: Where Rivers Meet

Witness the confluence of the Ohio and Mississippi Rivers at this historic park in Cairo, Illinois, offering scenic views and a glimpse into the past.

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At the confluence of the Ohio and Mississippi Rivers, Fort Defiance State Park offers a unique vantage point to witness this natural phenomenon. With historical ties to the Civil War and the Lewis and Clark Expedition, the park provides both scenic beauty and a glimpse into the past.

A brief summary to Fort Defiance State Park

Local tips

  • Bring binoculars to enhance your viewing experience of the river confluence and observe the diverse birdlife.
  • Pack a picnic to enjoy at the park's tables while taking in the scenic views of the rivers.
  • Visit during the spring or fall for pleasant weather and to avoid the summer heat.
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Getting There

  • Driving

    From Cairo, Illinois, head north on US-51/US-60/US-62. Follow the signs for Fort Defiance State Park. The park entrance is located where these highways converge. Parking is available within the park.

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Discover more about Fort Defiance State Park

Fort Defiance State Park, situated at the southernmost tip of Illinois in Cairo, stands as a testament to both natural wonder and historical significance. Here, the mighty Ohio and Mississippi Rivers converge, creating one of the largest confluences in the world. The park offers visitors a front-row seat to this impressive meeting of waterways, where the currents sometimes appear to resist merging, showcasing the raw power of nature. Originally known as Camp Defiance during the Civil War, the area served as a strategic military fortification. Though the fort itself is no longer standing, the park's observation building, known as the Boatman's Memorial, provides panoramic views of the confluence. The park also holds historical importance as a site where Lewis and Clark trained their recruits in 1803 before embarking on their expedition. Markers within the park commemorate their time spent here, honoring York and Captain Lewis's dog, Seaman. Today, Fort Defiance State Park is managed by the staff at Horseshoe Lake-Alexander State Fish and Wildlife Area. Visitors can enjoy picnicking with views from tables scattered about the site. Fishing is a popular activity along the riverbanks, where anglers can catch catfish and striped bass. The park is also the lowest point in Illinois, with an elevation of 279 feet.

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