2017 Map of Seneca

About this map

Bear Valley and the northern reaches of the Malheur National Forest dominate this landscape in Grant County. The town of Seneca serves as a central hub, situated near the Silvies River and the Seneca Emergency Airstrip. The terrain transitions from the high peaks of the Aldrich Mountains and Starr Ridge in the north down into the wetlands and water management systems of the valley floor. Water distribution is visible through features like the Southworth Ditch and the Bull Run Reservoir. This area reflects a long history of high-altitude ranching and timber management, evidenced by numerous named springs such as Hunters Cabin Spring and Big Glade Spring, and the isolated Southworth Cem located north of the main settlement.