U.S. Department of the Interior

Graphic of trees and lake scenery.

For More Information:

Logan Sholar

Contact OSMRE

Cordero Rojo Mine, Mining Plan Modification Environmental Assessment

Welcome to the OSMRE Cordero Rojo Mine mining plan modification Environmental Assessment (EA) webpage. Here you will be able to view and download all documents relating to this EA as they become available to the public. For more information about this project see About the Project. When available, the EA and other supporting documentation will be posted in the Document Library.

Available EA

OSMRE has completed an EA and unsigned Finding of No Significant Impact (FONSI), for future surface mining operations in the Federal Coal Lease WYW- 174407 at the Cordero Rojo Mine. The EA and the unsigned FONSI can be found in the Document Library. OSMRE will accept written or emailed comments until August 7, 2017. All comments must be received or postmarked by August 7, 2017, to be considered.

A printed version of the EA and unsigned FONSI can also be reviewed at the following locations:
Office of Surface Mining Reclamation and Enforcement, Western Region
P.O. Box 25065
Lakewood, CO 80225-0065
Between the hours of 8:00 AM and 4:00 PM Monday through Friday (Closed Saturday and Sunday)

You are invited to direct your written comments on the EA and unsigned FONSI to:
ATTN: OSMRE, Cordero Rojo Mine EA
C/O Logan Sholar
Office of Surface Mining Reclamation and Enforcement, Western Region
P.O. Box 25065
Lakewood, CO 80225-0065

Comments should be emailed to Be sure to send emails with the subject line: ATTN: OSMRE, Cordero Rojo Mine EA.

Before including your address, phone number, e-mail address, or other personal identifying information in your comment, you should be aware that your entire comment – including your personal identifying information – will be publicly available. While you can ask us in your comment to withhold your personal identifying information from public review, we cannot guarantee that we will be able to do so.

All submissions from organizations or businesses and from individuals identifying themselves as representatives or officials of organizations or businesses will be available for public review to the extent consistent with applicable law.

OSMRE kindly requests that you refer to the specific chapter, section and/or page number of the EA and/or FONSI that is associated with your comment.

Page Last Modified/Reviewed: 6/22/20

Western Region OSMRE, PO Box 25065, Lakewood, CO 80225-0065
TTY: (202) 208-2694 | Email:

Accessibility | Disclaimer | FOIA | No Fear | Notices | Privacy | DOI |