|                                                               |
|---------------------------------------------------------------|
|                                                               |  |  |
| Ohio                                                          |   | 34-1464672 |
| (State or Other Jurisdiction ofIncorporation or Organization) |   | (I.R.S. EmployerIdentification No.) |
|                                                          |   |
| 200 Public Square, Cleveland, Ohio                            |   | 44114-2315 |
| (Address of Principal Executive Offices)                      |   | (Zip Code) |

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|     |                                                                                                                                                                                                                                                                                             |
|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (a) | Part I - Item 4 “Controls and Procedures” to include a discussion of a material weakness  identified subsequent to the Original Filing that existed in 2012 and 2011, the actions taken to remediate such material weakness during the interim period ended March 31, 2013; and |

|     |                                                                                                                                                                                                                                  |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (b) | Part II - Item 6 “Exhibits” to indicate that the new certifications by the Company’s principal executive and principal financial officer, as required by Rule 12b-15, are filed as exhibits to this Amendment. |

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|---------|
|         |  |
| Item 4. | Controls and Procedures |

|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Improved reconciliation and review controls over legal entity financial information and focus on classification and presentation effects of less-than-wholly-owned subsidiaries in our consolidation process.  Furthermore, increased analysis of trial balance activity and elimination ledgers are conducted to ensure that the classification and presentation assertions are supported within our consolidated financial statements on a monthly basis, including focused calculation and review of the effects of purchase price allocation in subsequent periods. |

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|        |
|--------|
|        |  |  |  |  |  |  |  |
|   |   |   | CLIFFS NATURAL RESOURCES INC. |
|   |   |   |   |   |
|   |   |   | By: |   | /s/ Timothy K. Flanagan |
|   |   |   |   |   | Name: |   | Timothy K. Flanagan |
|   |   |   |   |   | Title: |   | Vice President, Corporate |
|   |   |   |   |   |   |   | Controller and Chief Accounting Officer |
| Date:  | September 10, 2014 |   |   |   |   |   |   |

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|                |
|----------------|
|                |  |
| ExhibitNumber  | Exhibit |
| 3.1†     | Second Amended Articles of Incorporation, as amended, of Cliffs Natural Resources Inc. (as filed with the Secretary of State of the State of Ohio on February 20, 2013) |
| 4.1†     | Deposit Agreement, dated as of February 21, 2013, by and between Cliffs Natural Resources Inc. and Wells Fargo Bank, N.A., as Depositary (including Form of Depositary Receipt) (filed as Exhibit 4.1 to Cliffs' Form 8-K on February 21, 2013 and incorporated herein by reference) |
| 31.1           | Certification Pursuant to 15 U.S.C. Section 7241, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, signed and dated by Lourenco Goncalves as of September 10, 2014 |
| 31.2           | Certification Pursuant to 15 U.S.C. Section 7241, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, signed and dated by Terrance M. Paradie as of September 10, 2014 |
| 32.1†    | Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, signed and dated by Joseph A. Carrabba, President and Chief Executive Officer of Cliffs Natural Resources Inc., as of April 25, 2013 |
| 32.2†    | Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, signed and dated by Terrance M. Paradie, Executive Vice President and Chief Financial Officer of Cliffs Natural Resources Inc., as of April 25, 2013 |
| 95†      | Mine Safety Disclosures |
| 101.INS† | XBRL Instance Document |
| 101.SCH† | XBRL Taxonomy Extension Schema Document |
| 101.CAL† | XBRL Taxonomy Extension Calculation Linkbase Document |
| 101.DEF† | XBRL Taxonomy Extension Definition Linkbase Document |
| 101.LAB† | XBRL Taxonomy Extension Label Linkbase Document |
| 101.PRE† | XBRL Taxonomy Extension Presentation Linkbase Document |