Exhibit 31.1
CERTIFICATION
I, Lourenco Goncalves, certify that:
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1. | I have reviewed this quarterly report on Form 10-Q/A of Cliffs Natural Resources Inc.; and |
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2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
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| Date: | September 25, 2014 | | By: | | /s/ Lourenco Goncalves |
| | | | | | Lourenco Goncalves |
| | | | | | Chairman, President and Chief Executive Officer |
