SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A (Mark One) [ X ]	 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 [Fee Required] For the fiscal year period ended DECEMBER 31, 1997 or [ ]	 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES ACT OF 1934 	[No Fee Required] For the transition period from ________ to _________ Commission File No. 0-692 NORTHWESTERN CORPORATION (formerly known as NORTHWESTERN PUBLIC SERVICE COMPANY) DELAWARE					 46-0172280 (State of Incorporation)				 (IRS Employer Identification No.) 33 THIRD STREET SE HURON, SOUTH DAKOTA 57350-1318 (Address of principal office) (Zip Code)	 605-352-8411 (Registrant's telephone number) Securities registered pursuant to Section 12(b) of the Act: COMMON STOCK $1.75 PAR VALUE AND 	NEW YORK STOCK EXCHANGE RELATED COMMON STOCK PURCHASE RIGHTS NEW YORK STOCK EXCHANGE COMPANY OBLIGATED MANDATORILY REDEEMABLE 	 	 SECURITY OF TRUST OF HOLDING SOLELY PARENT DEBENTURES, $25.00 LIQUIDATION AMOUNT COMMON STOCK PURCHASE RIGHTS 	NEW YORK STOCK EXCHANGE (Title of each class) (Name of each exchange on which registered) Securities registered pursuant to Section 12(g) of the Act: PREFERRED STOCK, PAR VALUE $100 						(Title of class) Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. [ X ] Yes [ ] No Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K [ ] State the aggregate market value of the voting stock held by nonaffiliates of the registrant: 		 			$ 410,378,052 as of FEBRUARY 18, 1998 Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date: 				COMMON STOCK, PAR VALUE $1.75 17,842,524 SHARES OUTSTANDING AT MAY 10, 1998 DOCUMENTS INCORPORATED BY REFERENCE 1997 Annual report to Stockholders..........Parts I and II Proxy Statement for 1998 Annual Meeting..........Parts I and III SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A AMENDMENT TO APPLICATION OR REPORT FILED PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT 1934 NORTHWESTERN CORPORATION (Formerly known as Northwestern Public Service Company) AMENDMENT NO. 1 EXHIBIT 99.1 Northwestern Public Service Company 						 Employee Stock Ownership Plan EXHIBIT 99.2 Northwestern Public Service Company 						Variable Investment Plan (401K) EXHIBIT 99.3 Northwestern Public Service Company 						Supplemental Variable Investment Plan 						 The undersigned registrant hereby amends the Exhibit Index to Annual Report on Form 10-K for Year Ended December 31, 1997 as set forth in the pages attached hereto, pursuant to Rule 15d-21. Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused the amendment to be signed on its behalf by the undersigned hereunto duly authorized. 						NORTHWESTERN CORPORATION 					 		 /s/D.A. Monaghan				 ___________________________________ Treasurer & Controller SIGNATURES 	 Pursuant to the Requirement of the Securities Exchange Act of 1934, the Plan Administrator has duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized. 							NORTHWESTERN CORPORATION 							 By: /s/D. A. Monaghan 								__________________________ Treasurer & Controller July 15, 1998