Fort St. Clair State Park

Fort St. Clair is really a treasure. Located about 1.5 hours north of Cincinnati it’s a family style park with play areas for kids, lots of hiking and walking, nice vantage and view points and several small streams. The park is a designated spot for large family reunions, church functions and don’t expect to be able to during the summer and get a spot for an impromptu picnic — you will have to reserve a spot. Because the park is remote there is lots of parking within the grounds due to vehicle traffic. Lots of historical markers, the fort which you can visit make it good for educational purposes and scouts usually take advantage of this.
It is a well kept park with clean facilities, large open areas for grilling, lots of benches with updated information on sign posts and lots of covered areas for gatherings.
This is a cut and paste from it’s wiki:
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Built in 1791 during the Northwest Territory Indian War (1785 – 1795) as a 120′ square palisaded fort with four sided, arrow shaped, bastions at each of the four corners.
On 6 Nov 1792 the fort and troops outside the fort were attacked by a force of 200 Miami Indians under chief Little Turtle. The Kentucky Militia under Maj. John Adair drove off the attackers with a loss of only six Kentuckians. Those six fallen militia men were buried on the site under what was known as the «Whispering Oak» tree. That oak and the grave markers of the six are in place today.
The fort was abandoned in 1796 after the end of the Northwest Territory Indian War and the subsequent Treaty of Greenville.
Current Status
Part of Fort Saint Clair State park near Eaton, Ohio. The fort site is outlined with a fence and a state marker sits in the center of the outline. The «Wispering Oak» and the grave markers of the six fallen soldiers sits off to one side of the site. Various markers and display signs help interpret the site. One period cannon on the site.
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It does contain a very old cemetery (Mound Union) and during Christmas boasts a beautiful Christmas display which is accessed by car. If you need to get away and you are up for some nice light hiking and can pack a lunch and eat within the more forested areas this is a great day trip.