From Cincinnati Audubon website
From BirdWatchingDaily website

Miami Fort Trail
1.4 miles – moderate
Enter the Miami Fort earthwork, built by the Adena and Hopewell cultures, dating back nearly 3,000 years ago. Notice the high, constructed berms to your right as you enter the fort, possibly used for water retention and agricultural irrigation. Look for other burial mounds along the trail also constructed by the Adena and Hopewell cultures. View the confluence of the Great Miami River and Ohio River at the point. Indiana and Kentucky are also visible. Keep your eyes open for American Bald Eagles and Black Vultures soaring on the updrafts from the river. Commonly found on the trail are Fowler’s Toads, Zebra Swallowtails, and their host plant the Pawpaw tree, Cerulean Warblers, American Redstarts, and Fox Squirrels.

The AllTrails website has a description with a map of a hike on the Miami Fort Trail.

Shawnee Lookout is well known for its historical Springhouse School and Log Cabin, Indian archaeological earthworks, and nature trails, including the 1.3-mile Blue Jacket, 2.0-mile Little Turtle, and the 1.4-mile Miami Fort trail that offers a spectacular view of the Great Miami River. The park also offers boat access to the Great Miami River, picnic areas, and a playground.

Ulmansiek Wildlife Sanctuary is a 263-acre of seasonally flooded riparian habitat located along the Great Miami River and noted for the wide variety of migratory waterfowl that use it as a resting area. An additional 914 acres are wetlands located adjacent to the park and are protected through conservation easements. The area provides valuable habitat for a variety of wildlife.