2018 Map of Clark Lake NE

About this map

The Santa Rosa Mountains dominate the northern terrain of this 2018 quadrangle, where steep elevation changes transition sharply into the expansive Clark Valley to the south. This desert landscape is defined by its dramatic drainage systems, including the deep cuts of Martinez Canyon in the northeast and the converging paths of Rockhouse Canyon and Butler Canyon in the southwest. The map documents the political boundary between Riverside and San Diego counties as it traverses these arid highlands. Modern topographic detailing illustrates the complex alluvial fans and seasonal washes that shape the valley floor, providing a precise look at the hydrology of the Colorado Desert region before it reaches the lower basin levels.