Exhibit 32  Certifications
of Chief Executive Officer and Chief Financial Officer pursuant toSection 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 12, 2004 | 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 12, 2004 | By:  /s/   Thomas A. Janochoski                                          
|------------------------ | -------------------------------------------------------------------------
|                         | Thomas A. Janochoski, Vice President & Secretary, Chief Financial Officer

---