2015 Map of Rail Canyon

About this map

The eastern edges of the Sacramento Valley meet the rising foothills of the Coast Ranges in this 2015 survey of the border between Glenn and Colusa counties. This landscape is defined by its complex drainage systems and named topographical landmarks, where seasonal waters flow through Rail Canyon and Uncles Canyon toward the Central Valley. Evidence of earlier land management and travel persists in the grid of the Public Land Survey System and local thoroughfares like Rail Canyon Rd and Co Road 401. The map documents a sparsely populated but distinctly named terrain, from the high point at High Peak to the basin of Clark Valley. Natural features such as Glen Spring and the S Fork Willow Cr highlight the vital water sources that have shaped land use and ranching boundaries in this part of Northern California for generations.