Exhibit 32

Certifications of Chief Executive Officer and Chief Financial Officer pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002 (furnished but not filed)

In connection with this Annual Report of Great Northern Iron Ore Properties
on Form 10-K filed with the Securities and Exchange Commission, I, Joseph S. Micallef, President of the Trustees and Chief
Executive Officer of Great Northern Iron Ore Properties, certify that:

| | 1. |  | This Annual Report fully complies with the requirements of Section
13 or 15(d) of the Securities and Exchange Act of 1934; and
| | -- |  | ------------------------------------------------------------------------------------------------------------------------------

| | 2. |  | The information contained in this Annual Report fairly presents,
in all material respects, the financial condition and results of operations of Great Northern Iron Ore Properties.
| | -- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic
version of this written statement required by Section 906, has been provided to Great Northern Iron Ore Properties and will be
retained by Great Northern Iron Ore Properties and furnished to the Securities and Exchange Commission or its staff upon request.

|Date: |                                                                            | February 16, 2006 |  | By: |  | /s/   Joseph S. Micallef | 
|----- | -------------------------------------------------------------------------- | ----------------- |  | --- |  | ------------------------ | 
|      |                                                                            |                   |  |    
|      | Joseph S. Micallef, President of the Trustees,     Chief Executive Officer

In connection with this Annual Report of Great Northern Iron Ore Properties
on Form 10-K filed with the Securities and Exchange Commission, I, Thomas A. Janochoski, Vice President & Secretary and Chief
Financial Officer of Great Northern Iron Ore Properties, certify that:

| | 1. |  | This Annual Report fully complies with the requirements of Section
13 or 15(d) of the Securities and Exchange Act of 1934; and
| | -- |  | ------------------------------------------------------------------------------------------------------------------------------

| | 2. |  | The information contained in this Annual Report fairly presents,
in all material respects, the financial condition and results of operations of Great Northern Iron Ore Properties.
| | -- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic
version of this written statement required by Section 906, has been provided to Great Northern Iron Ore Properties and will be
retained by Great Northern Iron Ore Properties and furnished to the Securities and Exchange Commission or its staff upon request.

|Date: |                                                                               | February 16, 2006 |  | By: |  | /s/   Thomas A. Janochoski | 
|----- | ----------------------------------------------------------------------------- | ----------------- |  | --- |  | -------------------------- | 
|      |                                                                               |                   |  |    
|      | Thomas A. Janochoski, Vice President & Secretary,     Chief Financial Officer

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