2017 Map of Kisumxi Mountain

About this map

Toppenish sits at the northern edge of this landscape, where the intensive irrigation networks of the Yakima Valley meet the rising slopes of the Yakama Reservation. The map documents a complex system of water management including the Marion Drain, Toppenish Drain, and Parton Drain, which support the agricultural tracts divided by an orderly grid of country roads. South of these fertile lowlands, the terrain shifts abruptly as the Toppenish Ridge climbs toward the summit of Kisumxi Mtn. This geography creates a sharp contrast between the settled valley floor and the high, creek-carved ridges. Waterways such as Wanity Slough and Toppenish Creek meander across the transition zone, while Satus Cr cuts through the deeper canyons of the southern highlands, illustrating the natural drainage patterns that define this part of Washington.