2018 Map of Old Iron Mountain

About this map

Eldorado National Forest encompasses this high-elevation terrain in El Dorado County, defined by a complex network of ridgelines and deep canyons. The landscape is marked by the prominent Iron Mtn Ridge and Old Iron Mtn, where the elevation shapes local transit and settlement patterns. Small clusters and individual sites like Bryants, Griminger, and Bonetti sit tucked between features like Big Pebble Canyon and Little Pebble Canyon. The drainage of the N Fork Cosumnes River and its various tributaries, including Steely Cr and Plum Cr, dictate the movement of historical trails and modern forest roads. Notable for researchers of the area's timber and transit history, the Tonys Gulch Trestle Trail and the Mormon Emigrant Trl offer evidence of how this mountain landscape was navigated throughout the twentieth century.