2020 Map of Gillham Dam

About this map

Cossatot River flow and the impoundment of Gillham Lake define the geography of this borderland where Polk, Howard, and Sevier counties meet. The landscape is characterized by a dense network of creek drainages, including Hunters Cr, French Cr, and Strikin Cr, which cut through the timbered terrain. This modern survey illustrates the contemporary water management infrastructure at the Gillham Dam while preserving the locations of earlier cultural landmarks. Genealogists and local historians can locate Old New Hope Cem and Cossatot Cem, alongside the crossing at Ladds Bridge. The map provides a detailed view of the forest service and county road networks, such as Forest Pvt and various numeric routes, that provide access to the various forks of Hurricane Cr and Snake Cr south of the dam.