2014 Map of Vulcans Throne SW

About this map

The Colorado River carves a deep path through northwestern Arizona, marking a dramatic boundary between Mohave and Coconino counties. This 2014 survey captures a section where the river transitions from the protected reaches of Grand Canyon National Park into the Lake Mead National Recreation Area. The landscape is defined by its severe verticality, with named drainages like Hundred and Ninetytwo Mile Canyon and Boulder Wash incising the plateau. The placement of Big Spring near the southern edge of the sheet indicates one of the rare reliable water sources in this arid environment. The map provides an exceptionally clear look at the complex contouring of features such as Hells Hollow, illustrating the intricate geological layering characteristic of the canyon's edge before the terrain levels out toward the high desert plains.