Exhibit 4(f)
                              THE MONTANA POWER COMPANY

                                OFFICER'S CERTIFICATE


          ________________, the _______________ of The Montana Power Company
     (the "Company"), pursuant to the authority granted in the Board Resolutions
     of the Company dated ____________, 1996, and Sections 102, 201 and 301 of
     the Indenture defined herein, does hereby certify to The Bank of New York
     (the "Trustee"), as Trustee under the Indenture of the Company (For
     Unsecured Subordinated Debt Securities relating to Trust Securities) dated
     as of ________________ (the "Indenture") that:

          1.   The securities of the first series to be issued under the
               Indenture shall be designated "Junior Subordinated Deferrable
               Interest Debentures, ____% Series due ____" (the "Debentures of
               the First Series").  The Debentures of the First Series are to be
               issued in the name of The Bank of New York, as property trustee
               (the "Property Trustee"), pursuant to the Amended and Restated
               Trust Agreement dated as of _______________ (the "Trust
               Agreement") relating to Montana Power Capital I, a Delaware
               statutory business trust (the "Trust"), on behalf of the Trust;

          2.   The aggregate principal amount of the Debentures of the First
               Series shall be limited to $__________ at any time Outstanding,
               except as contemplated in Section 301(b) of the Indenture;

          3.   The Stated Maturity of the principal of the Debentures of the
               First Series shall be ____________, ____;

          4.   The Debentures of the First Series shall bear interest until the
               principal thereof shall be paid or made available for payment at
               the rate of ____% per annum payable quarterly in arrears on March
               31, June 30, September 30 and December 31 of each year (each, an
               "Interest Payment Date"), commencing _________, 1996.  Interest
               on the Debentures of the First Series will accrue from, and
               including, the date of original issuance and will accrue to, and
               including, the first Interest Payment Date, and, for each
               subsequent Interest Payment Date, will accrue from, and
               excluding, the last Interest Payment Date through which interest
               has been paid or duly provided for to, and including, such
               Interest Payment Date;

          5.   The Regular Record Date for the payment of each installment of
               interest on the Debentures of the First Series shall be the
               Business Day next preceding the corresponding Interest Payment
               Date; provided, however, that if the Debentures of the First
               Series are held neither by the Trust nor by a securities
               depositary, the Company shall have the right to change the
               Regular Record Date by an Officer's Certificate;

          6.   In accordance with Section 312 of the Indenture, the Company, by
               written notice given as provided below, may extend and re-extend
               the duration of any interest payment period to a maximum duration
               of the lesser of 20 consecutive quarters or the period ending on
               the Maturity of the Debentures of the First Series (an "Extension
               Period"), during which period interest will be compounded
               quarterly.  Prior to the termination of the Extension Period, the
               Company may, and at the end of the Extension Period the Company
               shall, pay all interest accrued and unpaid (together with
               interest thereon at the annual rate of _____% to the extent
               permitted by applicable law).  Upon such payment in full, such
               extension period shall terminate.  However, during any such
               Extension Period, the Company may not (i) declare or pay any
               dividends or distributions, on, or redeem, purchase, acquire or
               make a liquidation payment with respect to, any of its capital
               stock (other than dividends or distributions in common stock of
               the Company), or (ii) make any payment of principal, interest or
               premium, if any, on or repay, repurchase or redeem, or make any
               sinking fund payment with respect to, any indebtedness that is
               pari passu with or junior in interest to the Debentures of the
               First Series, or make any guarantee payments with respect to such
               indebtedness.  At least one Business Day prior to the earlier of
               (i) any date on which distributions on the _____% Cumulative
               Quarterly Income Preferred Securities of the Trust ("Preferred
               Securities") shall be payable or (ii) any date on which an
               Administrative Trustee (as defined in the Trust Agreement) shall
               be required to give notice to the New York Stock Exchange or
               other applicable self-regulatory organization or to holders of
               the Preferred Securities of the record date or the date such
               distribution shall be payable, but in any event not less than one
               Business Day prior to such date, the Company shall give the
               Property Trustee, the Administrative Trustees and the Trustee
               written notice of each election by the Company to extend or re-
               extend the duration of any interest payment period and the
               duration of such extension or re-extension;

          7.   (i) The principal and each installment of interest on the
               Debentures of the First Series shall be payable, (ii)
               registration of transfers and exchanges in respect of the
               Debentures of the First Series may be effected, and (iii) notices
               and demands to or upon the Company in respect of the Debentures
               of the First Series and the Indenture be served, at the office or
               agency of the Company in The City of New York; provided that
               payment of interest may be made at the option of the Company by
               check mailed to the address of the persons entitled thereto or,
               with respect to a registered holder of $1,000,000 or more
               aggregate principal amount of the Debentures of the First Series
               who had delivered a written request to the Trustee at least 14
               days prior to the relevant Interest Payment Date electing to have
               payments by wire transfer to a designated account in the United
               States, by wire transfer of immediately available funds to such
               designated account.  The Trustee initially will be the agency of
               the Company for such service of notices and demands.  The Company
               initially will be the Security Registrar and the Paying Agent for
               the Debentures of the First Series;

          8.   The Debentures of the First Series will be redeemable on or after
               _______ at the option of the Company, at any time and from time
               to time, in whole or in part, at a redemption price equal to 100%
               of the principal amount of the Debentures of the First Series
               being redeemed, together with any accrued and unpaid interest,
               including Additional Interest, if any, to the redemption date;
               provided, however, that the Company may not redeem less than all
               the Debentures of the First Series Outstanding unless all accrued
               and unpaid interest has been paid in full (or duly provided for)
               on all Debentures of the First Series for all quarterly interest
               periods terminating on or prior to the date of redemption;

          9.   The Debentures of the First Series also will be redeemable at the
               option of the Company upon the occurrence and during the
               continuation of a Tax Event or an Investment Company Event, in
               whole, but not in part, on any date within 90 days of the
               occurrence of such Tax Event or an Investment Company Event, at a
               redemption price equal to 100% of the principal amount of the
               Debentures of the First Series then Outstanding, together with
               any accrued and unpaid interest, including Additional Interest,
               if any, to the redemption date.  "Tax Event" means the receipt by
               the Trust or the Company of an opinion of counsel experienced in
               such matters to the effect that, as a result of any amendment to,
               or change (including any announced prospective change) in, the
               laws (or any regulations thereunder) of the United States or any
               political subdivision or taxing authority thereof or therein
               affecting taxation, or as a result of any official administrative
               or judicial pronouncement or decision interpreting or applying
               such laws or regulations, which amendment or change shall become
               effective or which pronouncement or decision shall be announced
               on or after the date of original issuance of the Preferred
               Securities, there is more than an insubstantial risk that (i) the
               Trust is, or within 90 days of the date thereof, will be, subject
               to Federal income tax with respect to income received or accrued
               on the Debentures of the First Series, (ii) interest payable by
               the Company on the Debentures of the First Series is not, or
               within 90 days of the date thereof, will not be, fully deductible
               by the Company for Federal income tax purposes, or (iii) the
               Trust is, or within 90 days of the date thereof, will be, subject
               to more than a de minimis amount of other taxes, duties or other
               governmental charges.  "Investment Company Event" means the
               receipt by the Trust of an opinion of counsel, rendered by a law
               firm having a recognized national tax and securities practice, to
               the effect that as a result of the occurrence of a change in law
               or regulation or a change in interpretation or application of law
               or regulation by any legislative body, court, governmental agency
               or regulatory authority, the Trust is or will be considered an
               "investment company" that is required to be registered under the
               Investment Company Act of 1940, as amended, which change in law,
               regulation, interpretation or application shall become effective
               on or after the date of original issuance of the Preferred
               Securities.

          10.  In the event that, at any time subsequent to their initial
               authentication and delivery, the Debentures of the First Series
               are to be held by a securities depositary, the Company, at such
               time, may establish the matters contemplated in clause (r) in the
               second paragraph of Section 301 of the Indenture in an Officer's
               Certificate supplemental to this Certificate;

          11.  No service charge shall be made for the registration of transfer
               or exchange of the Debentures of the First Series; provided,
               however, that the Company may require payment of a sum sufficient
               to cover any tax or other governmental charge that may be imposed
               in connection with their exchange or transfer;

          12.  The Debentures of the First Series shall have such other terms
               and provisions as are provided in the form set forth in Exhibit A
               hereto, and shall be issued in substantially such form;

          13.  The undersigned has read all of the covenants and conditions
               contained in the Indenture relating to the issuance of the
               Debentures of the First Series and the definitions in the
               Indenture relating thereto and in respect of which this
               certificate is made;

          14.  The statements contained in this certificate are based upon the
               familiarity of the undersigned with the Indenture, the documents
               accompanying this certificate, and upon discussions by the
               undersigned with officers and employees of the Company familiar
               with the matters set forth herein;

          15.  In the opinion of the undersigned, he has made such examination
               or investigation as is necessary to enable the undersigned to
               express an informed opinion whether or not such covenants and
               conditions have been complied with; and

          16.  In the opinion of the undersigned, such conditions and covenants
               and conditions precedent, if any (including any covenants
               compliance with which constitutes a condition precedent) to the
               authentication and delivery of the Debentures of the First Series
               requested in the accompanying Company Order have been complied
               with.

               All capitalized terms used in this Certificate which are not
     defined herein but are defined in the Indenture shall have the meanings set
     forth in the Indenture.

          IN WITNESS WHEREOF, I have executed this Officer's Certificate this
     ____ day of _________________, ____.


                                        ________________________________________
                                        Name:  [Authorized Officer]
                                        Title:


     NO. R-1

                                                            EXHIBIT A

         [FORM OF FACE OF DEFERRABLE INTEREST JUNIOR SUBORDINATED DEBENTURE]

                              THE MONTANA POWER COMPANY

                  JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURES,
                               ____% SERIES DUE _____ 

          THE MONTANA POWER COMPANY, a corporation duly organized and existing
     under the laws of the State of Montana (herein referred to as the
     "Company"), for value received, hereby promises to pay to
     ____________________________________, or registered assigns, the principal
     sum of ____________________ Dollars on ____________, ____, and, except as
     hereinafter provided, to pay interest on said principal sum from, and
     including, _________, 1996 or from, and excluding, the most recent Interest
     Payment Date through which interest has been paid or duly provided for,
     quarterly on March 31, June 30, September 30 and December 31 of each year,
     commencing _________, 1996, at the rate of ____% per annum, plus Additional
     Interest, if any, until the principal hereof shall be paid or made
     available for payment.  The interest so payable, and punctually paid or
     duly provided for, on any Interest Payment Date will, as provided in such
     Indenture, be paid to the Person in whose name this Security (or one or
     more Predecessor Securities) is registered at the close of business on the
     Regular Record Date for such interest, which shall be the Business Day next
     preceding such Interest Payment Date.

               Payment of the principal of, and premium, if any, and interest
     on, this Security will be made at the office or agency of the Company
     maintained for that purpose in The City of New York, in such coin or
     currency of the United States of America as at the time of payment is legal
     tender for payment of public and private debts; provided, however, that, at
     the option of the Company, interest on this Security may be paid by check
     mailed to the address of the person entitled thereto, as such address shall
     appear on the Security Register or, with respect to a registered holder of
     $1,000,000 or more aggregate principal amount of the Securities of this
     series who had delivered a written request to the Trustee at least 14 days
     prior to the relevant Interest Payment Date electing to have payments by
     wire transfer to a designated account in the United States, by wire
     transfer of immediately available funds to such designated account.

               Reference is hereby made to the further provisions of this
     Security set forth on the reverse hereof, which further provisions shall
     for all purposes have the same effect as if set forth at this place.

               Unless the certificate of authentication hereon has been executed
     by the Trustee referred to on the reverse hereof by manual signature, this
     Security shall not be entitled to any benefit under the Indenture or be
     valid or obligatory for any purpose.

               IN WITNESS WHEREOF, the Company has caused this instrument to be
     duly executed.

                                   THE MONTANA POWER COMPANY


                                   By:_______________________________________

     ATTEST:


     ____________________________


                       [FORM OF CERTIFICATE OF AUTHENTICATION]

                            CERTIFICATE OF AUTHENTICATION

     Dated:

               This is one of the Securities of a series designated pursuant to
     the within-mentioned Indenture.

                                   THE BANK OF NEW YORK, as Trustee


                                   By:_______________________________________
                                             Authorized Signatory


                                 [FORM OF REVERSE OF
                  JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURE]

               This Security is one of a duly authorized issue of securities of
     the Company (herein called the "Securities"), issued and to be issued in
     one or more series under an Indenture, dated as of __________, 1996
     (herein, together with any amendments thereto, called the "Indenture"),
     between the Company and The Bank of New York, as Trustee (herein called the
     "Trustee"), and reference is hereby made to the Indenture, including any
     supplemental indenture, Board Resolutions and Officer's Certificate filed
     with the Trustee creating the Securities for a statement of the respective
     rights, limitations of rights, duties and immunities thereunder of the
     Company, the Trustee and the Holders of the Securities and of the terms
     upon which the Securities have been, and are to be, authenticated and
     delivered.  These Securities are limited in aggregate principal amount to
     $___________.

               The Securities of this series are subject to redemption upon not
     less than 30 nor more than 60 days' notice by mail, at any time on or after
     ______________ as a whole or in part, at the election of the Company, at a
     Redemption Price equal to 100% of the principal amount, together with
     accrued and unpaid interest, including Additional Interest, to the
     Redemption Date.

               The Securities of this series also will be redeemable at the
     option of the Company if a Tax Event or an Investment Company Event, each
     as defined in the Indenture, shall occur and be continuing, in whole, but
     not in part, on any date within 90 days of the occurrence of such Tax Event
     or Investment Company Event, at a redemption price equal to 100% of the
     principal amount of the Securities of this series then Outstanding plus any
     accrued and unpaid interest, including Additional Interest, if any, to the
     Redemption Date, upon not less than 30 nor more than 60 days' notice given
     as provided in the Indenture.

               In the event of redemption of this Security in part only, a new
     Security or Securities of this series and of like tenor for the unredeemed
     portion hereof will be issued in the name of the Holder hereof upon the
     cancellation hereof.

               The indebtedness evidenced by this Security is, to the extent
     provided in the Indenture, subordinated and subject in right of payment to
     the prior payment in full of all Senior Indebtedness, and this Security is
     issued subject to the provisions of the Indenture with respect thereto. 
     Each Holder of this Security, by accepting the same, (a) agrees to and
     shall be bound by such provisions, (b) authorizes and directs the Trustee
     on his behalf to take such action as may be necessary or appropriate to
     acknowledge or effectuate the subordination so provided, and (c) appoints
     the Trustee his attorney-in-fact for any and all such purposes.  Each
     Holder hereof, by his acceptance hereof, hereby waives all notice of the
     acceptance of the subordination provisions contained herein and in the
     Indenture by each holder of Senior Indebtedness, whether now outstanding or
     hereafter incurred, and waives reliance by each such Holder upon said
     provisions.

               If an Event of Default with respect to Securities of this series
     shall occur and be continuing, the principal of the Securities of this
     series may be declared due and payable in the manner and with the effect
     provided in the Indenture.

               So long as no Event of Default under the Indenture with respect
     to the Securities shall have occurred and be continuing, the Company, by
     written notice given as provided below, may extend and re-extend the
     duration of any interest payment period to a maximum duration of the lesser
     of 20 consecutive quarters or the period ending on the Maturity of the
     Debentures (an "Extended Interest Payment Period") during which period
     interest will be compounded quarterly.  Prior to the termination of the
     Extension Period, the Company may, and at the end of the Extension Period
     the Company shall, pay all interest accrued and unpaid (together with
     interest thereon at the annual rate of _____% to the extent permitted by
     applicable law).  Upon such payment in full, such extension period shall
     terminate.  However, during such Extended Interest Payment Period the
     Company shall not declare or pay any dividends or distributions on, or
     redeem, purchase, acquire or make a liquidation payment with respect to,
     any of its capital stock (other than dividends or distributions in common
     stock of the Company), or make any payment of principal, interest or
     premium, if any, on or repay, repurchase or redeem, or make any sinking
     fund payment with respect to, any indebtedness that is pari passu with or
     junior in interest to the Securities of this series, or make any guarantee
     payments with respect to such indebtedness.  At least one Business Day
     prior to the earlier of (i) the date distributions on the Preferred
     Securities are payable and (ii) the date an administrative trustee named in
     the Trust Agreement shall be required to give notice to the New York Stock
     Exchange or other applicable self-regulatory organization or to holders of
     the Preferred Securities of the record date or the date such distributions
     are payable, but in any event not less than one Business Day prior to such
     record date, the Company shall give the Property Trustee, the
     administrative trustees and the Trustee written notice of each election by
     the Company to extend or re-extend the duration of any interest payment
     period and the duration of such extension or re-extension.

               The Securities of this series are issuable only in registered
     form without coupons in denominations of $25 and any integral multiple
     thereof.  As provided in the Indenture and subject to certain limitations
     therein set forth, Securities of this series are exchangeable for a like
     aggregate principal amount of Securities of this series and of like tenor
     and of authorized denominations, as requested by the Holder surrendering
     the same.

               No service charge shall be made for any such registration of
     transfer or exchange, but the Company may require payment of a sum
     sufficient to cover any tax or other governmental charge payable in
     connection therewith.

               The Company, the Trustee and any agent of the Company or the
     Trustee may treat the Person in whose name this Security is registered as
     the absolute owner hereof for all purposes, whether or not this Security be
     overdue, and neither the Company, the Trustee nor any such agent shall be
     affected by notice to the contrary.

               All terms used in this Security which are defined in the
     Indenture shall have the meanings assigned to them in the Indenture.