2020 Map of Tampico

About this map

Tampico serves as the focal point of this Yakima County landscape, situated where the N Fork Ahtanum Cr and S Fork Ahtanum Cr converge to form Ahtanum Cr. The topography is defined by the significant rise of Cowiche Mtn to the north and the prominent Ahtanum Ridge to the south, framing the productive Ahtanum Valley. This map captures a complex network of agricultural water management essential to the region's development, featuring the Ahtanum Canal and several named irrigation channels like Lesh Ditch, Shaw-Knox Ditch, and John Cox Ditch. These waterways support the valley's rural economy, which is further evidenced by local aviation sites such as West Valley Airport and Wilkinson Ranch Airport. The northern reaches include the higher elevations of Cowiche Basin and the isolated Oak Spring, illustrating the transition from the irrigated valley floor to the high rangeland.