2017 Map of Mackay

About this map

Mackay and the settlement of Houston anchor this Custer County landscape where high mountain peaks meet the agricultural infrastructure of the Big Lost River Valley. The town of Mackay is meticulously detailed, showing the street grid from Salmon St down to Smelter Ave, while the Mount McCaleb Cem sits at the foot of the soaring Mt McCaleb. This 2017 edition illustrates a complex system of water management essential to the high desert, including the Lower Cedar Cr Ditch, Nielsen Ditch, and Sharp Ditch. These man-made channels diverge from the Big Lost River to irrigate the flatlands, transitioning into the protected wilderness of the Challis National Forest. Notable landmarks such as the Mackay Airport and the geological formation of Invisible Mtn define the periphery of this mountain-locked valley.