2015 Map of Tumey Hills

About this map

The Diablo Range defines the stark topography of this 2015 survey, where the Panoche Hills and Tumey Hills meet the western edge of the San Joaquin Valley. This landscape is primarily characterized by its dramatic drainage systems and ridge lines, including Right Angle Canyon and the winding course of Panoche Cr. A significant cultural boundary is marked by the line dividing Fresno Co and San Benito Co, which cuts diagonally across the high country through the Griswold Hills. Transport through these arid uplands is limited to established routes like Panoche Rd and the evocatively named Valley Desertion Rd. The map illustrates the sharp transition where the steep, creek-carved terrain of the Ciervo Hills suddenly flattens into the productive expanse of the Central Valley.