Lost Maples State Natural Area, a designated National Natural Landmark is near headwaters. Recommended for inclusion in proposed Texas Natural Rivers System. Hiking trail in Lost Maples Natural Area recommended for inclusion in proposed Texas Trails System. Sabinal Canyon is a wooded canyon with the only good stand of Big Tooth Maples in central Texas Hill Country. Many canyon wrens and other birds.
River is spring-fed.
Gorgeous fall colors. New National Champion Texas Ash and Escarpment Black Cherry north of Vanderpool. Recommended for inclusion in proposed Texas Natural Rivers System. River maintains larger flow of water due to heavy rainfall and numerous tributaries and springs, with long isolated stretches. Forested, gently rolling hills in area.