2018 Map of Idria

About this map

Idria and Vallecitos anchor this map of high-elevation terrain within the Diablo Range. The landscape is dominated by significant peaks and ridges, including Sampson Peak, Idria Peak, and San Carlos Peak. These heights are dissected by a network of drainage systems such as Larious Cr and San Carlos Cr, which carve through deep features like Larious Canyon. Movement through this challenging topography is defined by the New Idria Rd and Clear Creek Rd, which follow the natural contours and creek beds. The arrangement of the Griswold Hills and Tumey Hills suggest a landscape largely shaped by its geology, where water sources like Larious Spring and Elkhorn Spring provided essential points of interest in an otherwise arid and high-relief environment.