Johnnie Johnson, also known as Rio Blanco Reservoir, is a state-owned water resource nestled in Rio Blanco, Colorado, near the town of Rangely. Built in 1970, this Earth dam structure stands at 28 feet in height, with a length of 4855 feet, providing a storage capacity of 1781 acre-feet for recreational purposes like fishing and wildlife conservation. The reservoir is regulated by the Colorado Department of Water Resources, ensuring its proper inspection and enforcement to maintain its fair condition and low hazard potential.

Located on the White River, Johnnie Johnson offers a surface area of 149 acres and a maximum discharge of 8821 cubic feet per second. Despite its high-risk assessment due to its structural characteristics, its emergency action plan readiness and risk management measures are currently not available. With a scheduled inspection frequency of every 6 years, the reservoir remains a vital asset for water and climate enthusiasts, providing a scenic and recreational haven in the heart of Colorado's natural splendor.

Enthusiasts and conservationists can appreciate the significance of Johnnie Johnson as a crucial water resource in Colorado, not only serving as a recreational hub but also supporting fish and wildlife conservation efforts. As a state-regulated entity under the jurisdiction of the Colorado Department of Water Resources, the reservoir's environmental impact and safety are closely monitored. Its low hazard potential, fair condition, and high-risk assessment highlight the importance of ongoing inspection and risk management measures to ensure the longevity and sustainability of this valuable water source in the region.