Twentynine Palms is a small Mojave Desert city in San Bernardino County, California, serving as a northern gateway to Joshua Tree National Park and home to the Marine Corps Air Ground Combat Center; settled around the spring known as the Oasis of Mara — long used by the Chemehuevi and later associated with the Serrano, who planted the original palms — the community grew through the 20th century into a desert outpost known for its murals, historic schoolhouse museum and proximity to the park's visitor center, with a landscape defined by high-desert climate, wide basins, and the cultural presence of the Twenty-Nine Palms Band of Mission Indians. - AsNotedIn