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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549




                                    FORM 8-K


                                 CURRENT REPORT

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


          Date of Report (Date of earliest event reported): May 4, 2005


                            NorthWestern Corporation
             (Exact name of registrant as specified in its charter)




            Delaware                       0-692                46-0172280
(State or other jurisdiction of   (Commission File Number)     (IRS Employer
         incorporation)                                      Identification No.)

              125 South Dakota Avenue                           57104
             Sioux Falls, South Dakota                       (Zip Code)
      (Address of principal executive offices)


                                 (605) 978-2908
                         (Registrant's telephone number,
                              including area code)





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Item 8.01      Other Events

On May 4, 2005, NorthWestern Corporation d/b/a NorthWestern Energy, issued a
press release announcing that it has reached an agreement in principle with PPL
Montana, LLC (PPLM), a subsidiary of PPL Corporation, to settle all claims and
counterclaims pending in the case styled Northwestern Corporation vs. PPL
Montana, LLC vs. NorthWestern Corporation and Clark Fork and Blackfoot, LLC,
Cause No. CV-02-94-BU (SEH) pending in U.S. District Court in Montana and PPLM's
claims filed in NorthWestern's bankruptcy proceeding. Under terms of the
agreement in principal, NorthWestern will retain its 500 kV Colstrip
transmission assets located in east-central Montana and PPLM will pay
NorthWestern $9.0 million in cash. The settlement terms are subject to approval
by the U.S. Bankruptcy Court for the District of Delaware and shall not be
binding until an order is obtained and entered by the Bankruptcy Court and the
lawsuit is dismissed by the U.S. District Court in Montana. The press release is
attached hereto as Exhibit 99.1.


Item 9.01          Financial Statements and Exhibits

 EXHIBIT NO.       DESCRIPTION OF DOCUMENT
- --------------------------------------------------------------------------------
 99.1*             Press Release of NorthWestern Corporation dated May 4, 2005

* filed herewith













                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                    NorthWestern Corporation


                                    By:   /s/ Roger Schrum
                                          --------------------------------------
                                          Roger Schrum
                                          Vice President - Human Resources and
                                          Communications


Date:  May 9, 2005












                                Index to Exhibits
                                -----------------

 EXHIBIT NO.       DESCRIPTION OF DOCUMENT
- --------------------------------------------------------------------------------
 99.1*             Press Release of NorthWestern Corporation dated May 4, 2005

* filed herewith