This report summarizes the meteorological, upper-air (SoDAR¹), nitrogen dioxide (NO_²), sulfur dioxide (SO₂), ozone (O₃), and particulate matter (PM) data collected at the Resolution Copper Project near Superior, Arizona, for the fourth quarter, October 1 through December 31, 2017. Monitoring was performed in accordance with the Resolution Copper Mining Monitoring Plan, March 2016 (“Monitoring Plan”) (approved by the Pinal County Air Quality Control District [PCAQCD] on July 28, 2016).