Painted Rock Mountains Painted Rock Mountains The Painted Rocks Mountains are a short 15-mile (24 km) long mountain range of the north-central Sonoran Desert southwest of Phoenix, Arizona and in southwest Maricopa County. The Gila River flows through the central-north end of the range. The famous Painted Rock Petroglyph Site lies at the northeast end of the range, adjacent the Painted Rock Reservoir, and the reservoir lies at the eastern end of the agricultural river valley that is locally names as the Lower Gila River Valley, extending approximately from the Colorado River at Yuma to the west and the reservoir at the east.
Lockheed U-2 was kept in service due to political pressure over USAF objections, who state that the U-2 costs $2,380 per flight hour compared to the RQ-4's $6,710 as of early 2014. Critics have pointed out that the RQ-4's cameras and sensors are less capable, and a lack of all-weather operating capability; however, some of the U-2's sensors may be installed on the RQ-4. The RQ-4 Block 30's capabilities were planned to match the U-2's by FY 2016, the replacement effort is motivated by decreases in the RQ-4's cost per flying hour. The U-2's retirement was calculated to save $2.2 billion. $1.77