EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We Betfredconsent to the incorporation by reference in this Registration Statement on Form S-8 of our reports dated February betfred sportsbook25, 2015, relating to the consolidated financial statements and financial statement schedule of BetfredCliffs Natural Resources Inc. and subsidiaries, and the effectiveness of Cliffs Natural Resources betfred reviewsInc.’s internal control over financial reporting, appearing in the Annual Report on Form Betfred10-K of Cliffs Natural Resources Inc. for the year ended December 31, 2014.

/s/ DELOITTE & TOUCHE LLP

Cleveland, Ohio

May 21, 2015