One of the most beautiful and pristine old-growth forests in the state, the 275-acre Lennox Woods Preserve is a vital refuge for several rare species of plant and animal communities supported by the waters of Pecan Bayou, one of the largest undammed watersheds in northeastern Texas. The old-growth timber and cathedral-like canopy of these woods are thought to be typical of the undisturbed floodplains throughout the state prior to the arrival of settlers.Lennox Woods Preserve is under the protection of the National Conservancy.

The Martha Lennox Memorial Nature Trail takes hikers through a variety of habitats, from upland short leaf pine oak forest to bottomland hardwoods. The mature forest provides habitats for woodpeckers, with the Red-headed and Pileated Woodpeckers being the most common. Spring time brings wood warblers. Late summer is the time for flocks of Carolina Chicadees, Tufted Titmice, and Nuthatches. Click here for an interpretive brochure and bird list.