The surface soil, called Miami Clay Loam, is silt loam overlaying heavy clay loam, both residue from the last glacier to cover vast portions of North America. Bedford shale and sandstone are under the loam. Some of the sandstone is Euclid Bluestone, which was quarried for walls and bridges built in the park and for other uses elsewhere.

Approximately 450 different plant species have recently been identified in Forest Hill Park, including several endangered species such as hairgrass and withe-rod. The encroachment of native and non-native invasive plants, including Japanese knotweed, tree-of-heaven and buckthorn, are a threat to the endangered plants, as well as to all the plants in the park. The "invaders" also take space that could be available for more desirable plants.

A lagoon and Dugway Brook are the park's main water features. The lagoon is man-made and is home to fish, turtles, ducks and too many geese. A great blue heron spends many hours decorating the island in the lagoon in summer months. The spillway and cascade emptying the lagoon are one of the park's finest features.

A branch of Dugway Brook enters the park on the south side through a large culvert. Above ground for only a short distance, the creek flows sedately over shale, eventually converging with an above-ground tributary. The creek then flows into another large culvert and does not resurface in the park

1. Boathouse and lagoon. Includes restroom open periodically. Originally intended for storage and rental of boats and comfort facilities.

2. Rustic stone masonry bridge and spillway with cascade that drains into the lagoon.

3. Meadow vista, a smaller version of the Great Meadow. Retains much of its original character, but picnic sites, trails and meadows need restoration and trees need maintenance and replacement.
4. Graceful pedestrian bridge designed by East Cleveland Engineer Wilbur Watson and Frank Walker, architect.

5. Site of Rockefeller home with view to Lake Erie. Built in late 1870's as a sanitarium, converted in 1881 to Rockefeller summer home.

6. Great Meadow and ravines containing old growth forests. View originally extended from the site of house to Lee Boulevard.

7. Site of Rockefeller barns and stables. A portion of brick wall and brick paving remains.

8. Beautiful stone bridge built in late 1800's using stone quarried on the property. Enabled horse drawn carriages to cross a ravine to reach the Rockefeller house and stables.

9. Dugway Valley, site of a restored picnic shelter and restroom needing restoration. Dugway brook flows underground through the Valley.

10. Heights Rockefeller Building containing apartments, offices and retail space. Built c. 1930 to complement and serve Forest Hill sub-division. Andrew Jackson Thomas, architect.

11. Forest Hill Historic District comprised of 81 "Rockefeller homes on the Nation Register of Historic Places", several other unusual homes with steel supports and many other attractive homes with slate, tile, or cedar shake roofs.