Wilderness (IMAGE) Desert Research Institute Caption Joshua Tree National Park and the Marine Corps Air Ground Combat Center at Twenty-Nine Palms lie only 9 km apart. Wilderness and its ideal are deeply embedded in the National Park Service, evidenced by the informational literature published by the National Park Service. Visitation and budget statistics enlighten the pressures on the park, which is mostly wilderness. A person is less likely to see another human being on the Marine Corps base ranges than they would within the park. Credit ESRI, DeLorme, NAVTEQ, USGS, Intermap, iPC, NRCAN, ESRI Japan, METI, ESRI China (Hong Kong), ESRI (Thailand) TomTom, 2013 Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.