Phantom Forest Conservation Area is a 13-acre (5.3 ha) park located in the city of Des Peres in St. Louis County, Missouri.

Positioned deep in suburban St. Louis, Phantom Forest offers outdoor recreational opportunities to nearby communities.

Phantom Forest is leased by and maintained by the city of Des Peres, Missouri.

The one half mile trail connects to the Bittersweet Woods Conservation Area.

Past the old house is a very small clearing with a bench and plaque commemorating Claire's donation.