Environmental assessments have been performed by the Bureau of Land Management, evaluating the environmental effects, of offering up 100,000 acres of land in Northwest Colorado, for oil and gas leases. The BLM is seeking public comments on the proposal to help identify potential concerns with the project. Grand, Moffat, Rio Blanco and Routt County all have land that would be affected if the land is opened up for leasing. In 2015, Colorado made $247 million dollars from mineral sales and leases. Comments on the projects should be submitted by December 12th. Comments should be e-mailed to the BLM at email@example.com, or mailed to the White River Field Office, at 220 E. Market St., Meeker, CO 81641. For links to the assessments and a map of the area click here.