Which states are consistently included in the region where the Cayuse War took place?
Cayuse War The Cayuse War was an armed conflict that took place in the Northwestern United States from 1847 to 1855 between the Cayuse people of the region and the United States Government and local American settlers. Caused in part by the influx of disease and settlers to the region, the immediate start of the conflict occurred in 1847 when the Whitman Massacre took place at the Whitman Mission near present day Walla Walla, Washington when fourteen people were killed in and around the mission. Over the next few years the Provisional Government of Oregon and later the United States Army battled the Indians east of the Cascades. This was the first of several wars between the Indians and American settlers in that region that would lead to the negotiations between the United States and Indians of the Columbia Plateau, creating a number of Indian reservations.
Wallkill Valley The Wallkill Valley is a broad valley extending through southeastern New York and northwestern New Jersey. It is composed of rolling hills, plains, and swamps (including the Black Dirt Region) surrounding the Wallkill River. The valley is a subdivision of the larger Hudson Valley, bound to the west by the Shawangunk Ridge/Kittatinny Mountains and to the east by the Marlboro Mountains and New York–New Jersey Highlands. The northern Wallkill Valley is sometimes associated with the greater Catskills region, although it is geographically separated from the Catskill Mountains by the Shawangunk Ridge and Rondout Valley. In a broader sense, the Wallkill Valley is part of the Ridge-and-Valley physiographic province of the Appalachian Mountains, while the Catskills further to the north and west are part of the Appalachian Plateau.