Okanagan Range
According to Fred Beckey there are differences of opinion about the names and locations of the subranges of the northern Cascades, especially between Canadian and American geographers.Nevertheless early geologists and topographers had a fundamental agreement about the location and names of the subranges.The Okanagan Range was seen as bounded by the Pasayten River on the west and continuing east to Chopaka Mountain.This definition of the Okanagan Range included most of today's Pasayten Wilderness and extending south to joins the main Cascade Range at Harts Pass, near the headwaters of the Methow River.[1] BCGNIS defines the northern boundary of the Okanagan Range as Young Creek and the lower Ashnola River.