2017 Map of Tumalo Dam

About this map

Tumalo Dam and the Upper Tumalo Reservoir anchor this 2017 survey of the Deschutes County landscape, where the management of water is the primary architect of the terrain. The complex irrigation network of the High Desert is visible in the paths of the Maxwell Ditch, Plainview Ditch, and the Columbia Southern Canal. These engineered waterways contrast with natural features like Dry Canyon and the broad expanse of Bull Flat. The western edge of the map transitions into the Deschutes National Forest, while the northern section shows the development of residential areas and the Sage Ranch Airport. The map documents a modern era of land use where historic agricultural needs and suburban growth meet at the foot of the Cascades, evidenced by the numerous named roads like Harrington Loop Rd and Cloverdale Rd that grid the open plains.