Exhibit 31.1
CERTIFICATION
I, Lourenco Goncalves, certify that:
1. | I have reviewed this quarterly report on Form 10-Q/A of Cliffs Natural Resources Inc.; and |
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. |
| Date: | September 25, 2014 | By: | /s/ Lourenco Goncalves | ||
| Lourenco Goncalves | |||||
| Chairman, President and Chief Executive Officer | |||||