2014 Map of Ashnola Pass OE N

About this map

The international border between Canada and the United States of America defines this high-altitude landscape in the mid-2010s. Centered on the northern edge of Okanogan Co in Washington, this survey documents the hydrographic patterns of the Pasayten and Similkameen drainage areas at the 49th parallel. The map highlights the intersection of political boundaries and the natural flow of water across the border, where numerous unnamed tributaries form a dense network of mountain drainages. Produced without contour data, the sheet focuses on the administrative and hydrological layout of this remote section of the Pacific Northwest, providing a clear visualization of the line where British Columbia meets the United States.