Exhibit 3.48

STATE OF MONTANA FILED JUN 26 2008 SECRETARY OF STATE

COPY

ARTICLES OF AMENDMENT TO

RESTATED ARTICLES OF INCORPORATION

Of

TEXAS WESTMORELAND COAL CO.

Texas Westmoreland Coal Co., a corporation organized and existing under and by virtue of the Business Corporation Act of the State of Montana (the “Corporation”), does hereby certify as follows;

1. The name of the Corporation is Texas Westmoreland Coal Co.

· 2. The Corporation filed its Restated Articles of Incorporation with the Secretary of

State of the State of Montana on August 3, 1971.

3. By unanimous written consent of the Board of Directors of the Corporation as of

June 26, 2008 a resolution was duly adopted, pursuant to Section 35-l-227 of the Montana Business Corporation Act, setting forth Articles of Amendment to the Restated Articles of Incorporation of the Corporation and declaring said Articles of Amendment to the Restated Articles of Incorporation to be advisable. As of June 26, 2008, there were a total of l0,000 shares of the Corporation’s capital stock issued and outstanding. No shares of the Corporation’s capital stock are entitled to vote as a class and each share of outstanding capital stock entitled the holder to one vote. By unanimous written consent dated June 26, 2008, the sole stockholder of the Corporation, who owns all 10,000 shares of the Corporation’s capital stock, duly approved said proposed Articles of Amendment to the Restated Articles of Incorporation in accordance with Section 35-1-227of the Montana Business Corporation Act. The number of votes entitled to be cast on the proposed Articles of Amendment was 10,000, and the number of votes cast in favor of the Articles of Amendment was l0,000 and the number of votes cast against the Articles

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of Amendment was zero (0). The resolution setting forth the Articles of Amendment to the

Restated Articles of Incorporation is as follows:

RESOLVED: That ARTICLES X and XI of the Restated Articles of Incorporation of the

Corporation, be amended in their entirety to read as follows: “ARTICLE X

(a) The business and affairs of the Corporation shall be managed by or under the direction of the Board of Directors.

(b) The number of directors of the Corporation shall be as from time to time fixed by, or in the manner provided in, the by-laws of the Corporation; provided, however, that at all times the Board of Directors shall include at least

one Independent Director. The term “Independent Director” shall mean a director of the Corporation who is not at the time of appointment and has not been at any time during the preceding five (5) years: (1) a stockholder, director (with the exception of serving as an independent director of the Corporation on or any Obligor (as such term is defined below)), officer, employee, member (with the exception

of serving as a special member of any Obligor), partner, attorney or counsel of the

Corporation or of any entity that is an Obligor or a member of the Parent Group (as such term is defined below) or any affiliate of any of them (except that he or she may be or become an independent director of any Single Purpose Entity (as such term is defined below)); (2) a customer or supplier of the Corporation or any of its affiliates; or (3) any member of the immediate family of a person described in clauses (1) or (2). As used herein, the terms “Obligor” and ‘‘Parent Group” shall have the meanings ascribed thereto in the Note Purchase Agreement dated as

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of June 26, 2008 (the “Note Purchase Agreement”), by and between Westmoreland Mining LLC, certain other parties named therein as “guarantors,” and the institutional investors identified in Schedule A thereto, as the same may be amended, modified, or supplemented from time to time. The term “Single Purpose Entity” shall mean an entity which is organized solely for the purposes of carrying out the activities described in its charter and which does not engage in any business unrelated to such activities, does not have any assets other than those related to its interest in the activities or any indebtedness other than as not prohibited by the contracts and other agreements applicable to it, has its own separate books and records and its own accounts, in each case which are separate and apart from the books and records and accounts of any other entity, and which holds itself out as being an entity separate and apart from any other entity.

ARTICLE XI

Notwithstanding any provision hereof to the contrary, so long as any Obligation (as such term is defined in the Note Purchase Agreement) is outstanding, the Corporation shall not, without the unanimous vote of the entire Board of Directors without any vacancies (including the Independent Director, or if there is more than one, all of the Independent Directors), institute proceedings

to be adjudicated bankrupt or insolvent; or consent to the institution of bankruptcy or insolvency proceedings against it; or file a petition seeking, or consent to, reorganization or relief under any applicable federal or state law relating to bankruptcy; or consent to the appointment of a receiver, liquidator, assignee, or

trustee, or to the appointment of a receiver, liquidator, assignee, trustee,

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sequestrator (or other similar official) of this Corporation or a substantial part of its property; or make any assignment for the benefit of creditors; or admit in writing its inability to pay its debts generally as they become due; or take any corporate action in furtherance of any such action.”

***

4. Except as amended hereby, the Restated Articles of Incorporation shall remain in

full force and effect.

5. The foregoing amendment does not provide for an exchange, reclassification or

cancellation of issued shares of the Corporation.

[THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK.]

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EXECUTED on June 26, 2008.

TEXAS WESTMORELAND COAL CO.

By:

Douglas P. Kathol

Vice President

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