For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
Dinosaur Valley, located within Dinosaur Valley State Park, contains the only known source of distinct and full-grown sauropod footprints. The trackways are among the first clearly defined for sauropods in North America. These tracks provided evidence relating to locomotion and foot structure for these large dinosaurs.
Location: Somervell County, TX
Year designated: 1968
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Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.
Last Updated: June 28, 2012