 The group has also worked to raise awareness of the state's Upper Green River Valley, where high levels of air pollution caused by energy development have led Wyoming to recommend the Environmental Protection Agency designate the area “nonattainment” for national ambient air quality standards for ground-level ozone levels.The Outdoor Council has also worked on issues related to massive water production and documented contamination resulting from coal-bed methane development in northeast Wyoming's Powder River Basin.The Wyoming Outdoor Council was also part of a broad coalition that worked to ensure passage of the Wyoming Range Legacy Act, a bill modeled after legislation that Wyoming Republican Senator Craig Thomas had intended to introduce before his death, and which was later introduced by his successor, John Barrasso.