ERO Resources conducted a formal Class I overview of Chevron’s proposed Skinner Ridge Development in Garfield County, Colorado, comprising 60,000 acres of privately owned land on the Roan Plateau. ERO generated a predictive model using the Class I data that divided the project area into three environmental zones, each characterized according to predicted site densities of high, medium, and low. Data from the Class I overview was incorporated into an Environmental, Safety, and Health Impact Assessment prepared by second party contractor.