One of the concerns in organized military warfare is the need for communication and the need to conceal that communication from the enemy. During the nineteenth century, the American military relied on bugles, drums, and flags to communicate on the battlefield.
The Great Basin Culture Area includes the high desert regions between the Sierra Nevada and the Rocky Mountains. It is bounded on the north by the Columbia Plateau and on the south by the Colorado Plateau. It includes southern Oregon and Idaho, a small portion of southwestern Montana, western Wyoming, eastern California, all of Nevada and Utah, a portion of northern Arizona, and most of western Colorado. This is an area which is characterized by low rainfall and extremes of temperature. The valleys in the area are 3,000 to 6,000 feet in altitude and are separated by mountain ranges running north and south that are 8,000 to 12,000 feet in elevation. The rivers in this region do not flow into the ocean, but simply disappear into the sand.
The Plateau Culture Area is the area between the Cascade Mountains and the Rocky Mountains in Washington, Oregon, Idaho, British Columbia, and Western Montana. From north to south it runs from the Fraser River in the north to the Blue Mountains in the south. Much of the area is classified as semi-arid. Part of it is mountainous with pine forests in the higher elevations.
For the Central Alaska Yup’ik Eskimo, spirituality was focused largely on the need to secure food for hunting. As with other animistic hunting peoples, animals were felt to have souls which would be reincarnated. Thus, rituals sought to appease the soul of the animal so that it would give itself to the Yup’ik hunters who needed its meat.
For more than 10,000 years Indian people have lived adjacent to the Columbia River. In the Columbia Gorge area, hundreds, if not thousands, of archaeological sites provide silent testimony to this long period of human occupation. Rock art, in the form of petroglyphs and pictographs, is found throughout the area. The area along the Columbia River from the present-day city of The Dalles to the confluence of the John Day River with the Columbia River contains one of the largest collections of rock art in North America. Archaeologists James Keyser, Michael Taylor, George Poetschat, and David Kaiser, in their book Visions in the Mist: The Rock Art of Celilo Falls, report:
“More than 100 individual rock art sites have been found and recorded in the area and others are discovered each year. The smallest of these are single images but the largest contain more than 1,000 different motifs.”