2018 Map of Big Maria Mountains SW

About this map

Big Maria Mountains dominate the eastern landscape of this Riverside County region, showcasing a complex network of arid ridges and deep desert washes. The terrain transitions from the steep slopes of the mountains to the more level desert floor in the west, where Black Hill stands as a prominent solitary landmark. This 2018 survey captures the critical infrastructure that traverses this remote stretch of the Colorado Desert, specifically Midland Rd and Arlington Mine Rd. These corridors follow the natural topography of the basin, reflecting the historical routes used to access the mining districts and geological resources of the interior desert ranges. The map provides a clear look at the township and range survey lines that divide this expansive public land, offering a modern perspective on a landscape defined by its severe elevation changes and isolated peaks.