Emmenegger Nature Park is a nature preserve and public recreation area near Valley Park, Missouri. It is bordered along its western perimeter by the Meramec River and to the south by Possum Woods Conservation Area. In the past, the property was owned by a family who also owned and operated a brewery. Its varied uses included a tennis club, a public swimming pool, and a riverside resort; it was also used for breeding exotic animals for the St. Louis Zoo. The land was purchased in the 1970s by a private citizen who donated part of the estate to the city of Kirkwood; the property is managed by the city and the Missouri Department of Conservation.