While they aren't really "lost," the bigtooth maples for which the park is named are very selective in their habitat. Widely scattered over several western states and northern Mexico, this maple thrives only in small, protected pockets in mountainous regions where temperature and humidity are moderate, where moisture is retained, and solar radiation is minimal. Because of their shallow roots, the trees are susceptible to damage by soil compaction and visitors are cautioned to stay on prescribed paths to ensure continued vigor of the maple stands. Fall color is usually at its peak in early Nov. (Note: Usually crowded in autumn when fall foliage at peak; it's recommended to see scenery during weekdays. Reservations needed this time of year for overnight stays. Also, nature sometimes plays tricks and autumn colors don't always attain usual brilliance.

Other vegetation in the scenic Hill Country park includes more than 90 plant families with some 350 species recorded. Bird life is also abundant, including the rare golden-cheeked warbler. Of many mammal species in the park, native white-tailed deer are most numerous.

Park facilities include campsites with water and electricity, picnic areas, rest rooms, showers, and primitive camp areas reached by almost 11 miles of hiking and backpacking trails.

Three trees are State Champion Big Trees - an escarpment chokecherry, a Texas ash, and a Bigtooth maple. The chokecherry and Texas ash have been nominated to the American Forestry Assn. Big Tree program for consideration as national champs. Park is four mi. north on R.M. 187. Admission fee.