2018 Map of Imperial Reservoir

About this map

Martinez Lake and Fishers Landing serve as the primary human touchpoints along the eastern bank of the Colorado River in this modern survey of the borderlands. The landscape is defined by massive water management projects and military reservation boundaries, with the Imperial Reservoir and Senator Wash Reservoir dominating the southern half of the sheet. These engineered waters sit in sharp contrast to the surrounding desert terrain, where features like the Chocolate Mountains and Explorers Pass rise above the river valley. The infrastructure of the Gila Main Canal and roads such as Red Cloud Mine Rd and Wildlife Refuge Rd illustrate the area's continued importance for irrigation, transit, and conservation. In the southeast, the Laguna Army Airfield marks the presence of the Yuma Proving Ground, emphasizing the strategic utility of this arid expanse.