In 2000 the Beaver Creek Wetlands Association, with help from the Nature Conservancy and a partial donation, acquired the eastern 52 acres. Originally named Fairborn Marsh, it was renamed the James P. Amon Biodiversity Reserve in 2022. (Some online maps still show the older name.) This location has the largest natural open water marsh in the wetland corridor. The open water is particularly attractive to migrating waterfowl and shorebirds. At the edges of the marsh, the higher ground is a quaking fen with a very high diversity of plant species. The forest is in the early stages of succession from former agricultural land, and in the upland, a restored prairie-savanna is in development. Beaver Creek Wetlands Association volunteers have worked to remove invasive honeysuckle and plant native oaks, hazelnut, spicebush, and dogwoods. Boy Scouts have helped develop trails and construct the observation deck and many volunteers maintain the grounds.

The western part of the reserve has no trails and is used mainly as a wildlife reserve, but viewable from the observation deck. It was purchased via a grant from the North American Wetlands Conservation Act to Wright State University and Beaver Creek Wetlands Association in partnership with the Ohio Department of Natural Resources and the Nature Conservancy in the mid-1990s.

Note: There is only sufficient off-street parking for one vehicle. Please be mindful of the neighboring homes if the street is used for parking.

The trail is easy and naturally surfaced with a length of 1.7 miles