1979 STOCK OPTION PLAN
                        FOR KEY EMPLOYEES
                (With Stock Appreciation Rights)


                    Adopted:  April 26, 1979
                    As Amended
                    September 25, 1980
                    September 24, 1981
                    January 27, 1983, and
                    April 25, 1991
































                THIS DOCUMENT CONSTITUTES PART OF
                A PROSPECTUS COVERING SECURITIES
                 THAT HAVE BEEN REGISTERED UNDER
                   THE SECURITIES ACT OF 1933
                          APRIL 2, 1993



                   MARTIN MARIETTA CORPORATION
            1979 STOCK OPTION PLAN FOR KEY EMPLOYEES


1.   Purpose

     The purpose of the Plan is to attract and retain the services
of key employees in positions which contribute materially to the
successful operation of the business of the Corporation and to
grant such employees an attractive opportunity to acquire a
proprietary interest in the business enterprise and thereby provide
them with an added incentive to increase the earnings of the
Corporation.

     It is intended that this purpose will be effected through the
granting of stock options and stock appreciation rights, as
provided herein.

2.   Definitions

     As used in the Plan, "Corporation" means Martin Marietta
Corporation and its subsidiaries.  "Subsidiary" means a corporation
of which Martin Marietta Corporation owns, directly or indirectly,
stock having at least 50% of the power to vote, under normal
circumstances, in the election of directors.  "Board of Directors"
means the Board of Directors of Martin Marietta Corporation. The
"Committee" means the Stock Option Committee.  "Employee" means
officers and other key employees of the Corporation but excludes
directors who are not also officers or employees of the
Corporation.  An "option" means an option to purchase shares of
Martin Marietta Common Stock.  A "right" means a stock appreciation
right.  "Grant" means the award of both a stock option and a stock
appreciation right.  The "grant value of the right" means the fair
market value of a share of stock on the date a right is granted, as
that value may be adjusted pursuant to Section 7(a)(iii) of the
Plan.

3.   Effective Date

     The Plan shall become effective upon the approval by the
stockholders.

4.   Eligible Employees

     Options and rights may be granted only to exempt salaried
employees of the Corporation.  However, not more than 10% of the
total number of shares available under the Plan shall be subject to
option to any one employee, and no individual who owns stock
possessing more than 5% of the combined voting power of all classes
of stock of the Corporation shall be eligible for a grant of
options and rights under the Plan.




5.   Terms of Stock Options and Stock Appreciation Rights

     The term of each option and right granted under the Plan shall
be determined by the Board of Directors, consistent with the
provisions of the Plan, including the following:

          (a)  Each grant of options and rights may be exercised in
     whole or in part subject to the provisions of the Plan,
     provided that no option or right shall be exercisable prior to
     one year or  after ten years from the date of grant.  Except
     as provided in Section 6(c)(ii) each grant shall be divided
     into three approximately equal installments of 100-share and
     100-right increments. The first installment shall be
     exercisable one year after the date of grant and each
     succeeding installment shall be exercisable one year from the
     date the prior installment became exercisable.  To the extent
     that the installments are not equal in number, the larger
     installment or installments shall be exercisable in the last
     or second and last years. After the privilege to exercise an
     installment accrues, the options and rights included in that
     installment may, except as provided in Section 8, be exercised
     at any time prior to the expiration of ten years from date of
     grant.

          (b)  Each optionee must remain in the employ of the
     Corporation for at least one year from the date the option and
     right are granted before any part of the grant can be
     exercised.

          (c)  An option or right shall not be assignable or
     transferable by the employee to whom granted otherwise than by
     will or by the laws of descent and distribution and shall be
     exercisable during the participant's lifetime only by the
     participant or in the event of disability by the legal
     guardian or representative.

          (d)  The grant will be evidenced by a certificate that
     will specify the number of shares and rights to which it
     pertains.

6.   Stock Options

          (a)  Shares of Stock Subject to the Plan

     The shares that may be issued under the Plan shall not exceed
750,000 shares of the Common Stock, $1.00 par value, of the
Corporation except as provided in Paragraph (c) below. They may
consist in whole or in part of unissued or treasury shares.  Such
treasury shares may be acquired to satisfy the requirements of the
Plan.  If for any reason shares as to which an option has been
granted cease to be subject to purchase, then such shares shall
again be available for option under the Plan.


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          (b) Grant of Options

        (i)    The purchase price of the stock subject to option
     shall not be less than 100% of the fair market value of the
     stock on the date the option is granted, except as otherwise
     provided in Section 6(c)(i) below.

       (ii)    The purchase price of the stock subject to option
     shall be paid in cash or, with the approval of the Board of
     Directors or the Committee, may be paid in full or part by the
     tender of Martin MarIetta Corporation Common Stock owned by
     the optionee.  Common Stock delivered in payment of the
     purchase price shall be valued at the fair market value and
     any portion of the purchase price not satisfied by the tender
     of Common Stock shall be paid in full in cash upon such
     exercise.  No fractional shares shall be issued.  As soon as
     possible following receipt of payment to the Corporation, the
     optionee (or other person entitled to exercise the option)
     shall receive a certificate or certificates for such shares,
     subject to the provisions of Section 6(d).

      (iii)    No person shall have the right of a stockholder with
     respect to shares subject to an option until the date the
     option is exercised.

          (c)  Adjustment Upon Changes in Stock

        (i)    If there shall be any change affecting the stock
     subject to the Plan or to any option granted thereunder
     through merger, consolidation, reorganization,
     recapitalization, stock dividend, stock split or combination,
     or otherwise, the Board of Directors shall make appropriate
     proportional adjustments in the aggregate number of shares
     subject to the Plan and the number of shares and the price per
     share subject to outstanding options and may assume old
     options or substitute new options for old options, regardless
     of whether the option price of any such option resulting from
     the proportional adjustment is less than the then fair market
     value of the subject shares.

       (ii)    In the event of a proposed dissolution or
     liquidation of Martin Marietta Corporation, each option
     granted under the Plan shall terminate as of a date, which in
     no event shall be later than the expiration date specified in
     the option, to be fixed by the Board of Directors, provided
     that not less than 30 days' written notice of the date so
     fixed shall be given to each optionee (or other person
     entitled to exercise the option) and each optionee (or other
     person entitled to exercise the option) shall have the right
     (provided that by the date of exercise of the option the
     optionee has remained in the employ of the Corporation for at
     least one year from the date the option was granted), during
     the period of 30 days preceding such termination to exercise

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     the option as to all or any part of the shares covered
     thereby, including shares as to which such option would not
     otherwise then be exercisable.

      (iii)    In the event of a Change of Control, each optionee
     (or other person entitled to exercise the option) shall have
     the right (provided that by the date of exercise of the option
     the optionee has remained in the employ of the Corporation for
     at least six months from the date the option was granted),
     during period of 60 days following a Change of Control to
     exercise the option as to all or any pert of the shares
     covered thereby, including shares as to which such option
     would not otherwise then be exercisable.  For purposes of this
     paragraph, the term "Change of Control" shall mean the
     following:

          (A)  a tender offer or exchange offer is made whereby the
          effect of such offer is to take over and control the
          affairs of the Corporation and such offer is consummated
          for the ownership of securities of the Corporation
          representing 25% or more of the combined voting powers of
          the Corporation's then outstanding voting securities;

          (B)  The Corporation is merged or consolidated with
          another corporation and as a result of such merger or
          consolidation less than 75% of the outstanding voting
          securities of the surviving or resulting corporation
          shall then be owned in the aggregate by the former
          stockholders of the Corporation, other than affiliates
          within the meaning of the Securities Exchange Act of 1934
          (the "Exchange Act") or any party to such merger or
          consolidation;

          (C)  the Corporation transfers substantially all of its
          assets to another corporation or entity which is not a
          wholly owned subsidiary of the Corporation;

          (D)  any "person" (as such term is used in
          Sections 3(a)(9) and 13(d)(3) of the Exchange Act) is or
          becomes the beneficial owner, directly or indirectly, of
          securities of the Corporation representing 25% or more of
          the combined voting power of the Corporation's then
          outstanding securities and the effect of such ownership
          is to take over and control the affairs of the
          Corporation; or

          (E)  during any period of two consecutive years,
          individuals who at the beginning of such period
          constitute the Board of Directors of the Corporation
          cease for any reason to constitute at least a majority
          thereof unless the election, or the nomination for
          election by the Corporation's stockholders, of each new
          director was approved by a vote of at least two-thirds of

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          the directors then still in office who were directors at
          the beginning of the period. For purposes of the Plan,
          ownership of voting securities shall take into account
          and include ownership as determined by applying the
          provisions of Rule 13d--3(d)(I)(i) of the exchange Act
          (as then in effect).

          (d)  Limitations on Transfer of Shares

     The Corporation shall not be required, upon the exercise of
any option, to issue or deliver any shares of stock prior to (a)
the authorization of such shares for listing on any stock exchange
on which Martin Marietta Corporation's Common Stock may then be
listed, and (b) such registration or other qualification of such
shares under applicable securities laws as the Corporation shall
determine to be necessary or advisable. If shares issuable on the
exercise of options have not been registered under the Securities
Act of 1933 ("the Act"') or theme is not available a current
Prospectus meeting the requirements of the Act with respect
thereto, optionees may be required to represent at the time of each
exercise of options that the shares purchased are being acquired
for investment and not with a view to distribution; and the
Corporation may place a legend on the stock certificate to indicate
that the stock may not be sold or otherwise disposed of except in
accordance with the Securities Act of 1933, as amended, and the
rules and regulations promulgated thereunder.

7.   Stock Appreciation Rights

          (a)  Grant of Rights

        (i)    Stock appreciation rights shall be granted only to
     recipients of stock options and each right will relate to a
     specific stock option granted under the Plan.  The number of
     rights granted shall equal the number of shares granted under
     the stock option provisions of the Plan and shall be granted
     concurrently with the grant of the related stock option.

       (ii)    A right shall entitle an optionee to receive without
     payment to the Corporation cash equivalent to the excess, if
     any, of the fair market value of a share of Martin Marietta
     Common Stock on the exercise date over the grant value of the
     right.

          (iii)     Should there be a change affecting the stock
     subject to the Plan as referred to in Section 6(c), the number
     of rights shall be adjusted to equal the number of related
     stock option shares upon completion of the adjustment required
     by the change. The grant value of a right shall also be
     adjusted to equal the option price of the related stock option
     following the adjustment required by the change.

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          (b)  Exercise of Rights

        (i)    Subject to the limitations set forth herein, an
     optionee shall be entitled to receive payment in cash for
     rights granted under this Plan. The cash payment will be in
     consideration of services performed for the Corporation or for
     its benefit by the optionee.

       (ii)    Nothing contained herein shall be construed to
     require the simultaneous exercise of options and the related
     rights where such options or rights are exercised after
     May 1,1991.

          (c)  Limitation on Value of Rights

     The cash payment for a right shall not exceed 100% of the
grant value of the right except in the event of a Change of Control
in which event the value shall be determined in accordance with
Section 7(a)(ii).

8.   Death, Termination of Employment, or Retirement

          (a)  If an optionee dies while employed by the
     Corporation or within three months after termination of
     employment, options and rights may be exercised by the persons
     referred to in Section 5(c) only within one year from the date
     of death.  In cases of retirement, either early or normal, or
     of disability, options may be exercised within three years
     from the date of such retirement or disability.  In cases of
     termination of an optionee's employment by the Corporation,
     with or without cause, the options and rights may be exercised
     by the optionee only within three months from the date of
     termination of employment.  Nothing contained in the Plan or
     in any option or right granted hereunder shall confer upon any
     optionee any right of continued employment by the Corporation
     nor limit in any way the right of the Corporation to terminate
     the participant's employment at any time.

          (b)  Except in cases of retirement or disability, a grant
     may be exercised pursuant to this Section 8 only to the extent
     the optionee was entitled to exercise the options and rights
     at the time of termination of employment or death or as
     provided in Section 6(c)(ii), and in any event, may not be
     exercised after the expiration of ten years from the date of
     grant.  In the event an optionee ceases to be an employee, the
     options and rights which are not exercisable at the time shall
     terminate.  In cases of retirement where an optionee has
     applied for and is receiving benefits pursuant to a retirement
     plan for Martin Marietta salaried employees, or disability,
     all outstanding options and rights shall become exercisable
     upon such retirement or disability and may be exercised
     pursuant to this Section 8 or as provided in Section 6(c)(ii)
     but in any event options and rights may not be exercised less

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     than six months or after the expiration of ten years from the
     date of grant thereof.

9.   Leave of Absence

     For the purpose of the Plan, an employee on leave of absence
will be considered as still in the employ of the Corporation unless
otherwise provided in an agreement between the employee and the
Corporation.

10.  Administration

          (a)  Stock Option Committee

        (i)    The Stock Option Committee shall consist of three or
     more of those members of the Board of Directors who are not
     eligible to receive options and rights under the Plan.  The
     members of the Committee shall be designated by the Board of
     Directors.  A majority of the members of the Committee shall
     constitute a quorum.  The vote of a majority of a quorum shall
     constitute action by the Committee.

       (ii)    The Committee shall determine the employees who will
     participate in the Plan, the number of shares and rights
     subject to each grant, and shall have the authority to adopt
     rules and regulations for administering the Plan.

      (iii)    As and to the extent authorized by the Board of
     Directors or the By-Laws, the Committee may exercise the
     powers and authority related to the Plan which are vested in
     the Board of Directors.  The Committee may delegate to the
     officers or employees of the Corporation the authority to
     execute and deliver documents and to take such other steps
     deemed necessary or convenient for the efficient
     administration of the Plan.

          (b)  Finality of Determinations

     The Board of Directors shall have the power to interpret the
Plan.  All interpretations, determinations, and actions by the
Board of Directors or, to the extent authorized by the Plan, the
Board of Directors or the By-Laws, by the Committee, shall be
final, conclusive, and binding upon all parties.

11.  Amendment and Termination

     The Board of Directors shall have the power, in its
discretion, to amend, suspend, or terminate the Plan or options and
rights granted under the Plan at any time.  It shall not, however,
without further action by the stockholders, have the power to (a)
change the class of employees eligible to receive options under the
Plan, (b) provide for options or rights exercisable more than ten
years after the date granted, or (c) extend the expiration date of

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the Plan; nor shall it have the power (except as otherwise provided
in the Plan) to (d) increase the number of shares subject to the
Plan or (e) reduce the option price below the fair market value of
the stock at the time the option was granted. No amendment,
suspension, or termination of the Plan or options and rights
granted under the Plan shall, except with the consent of the
optionee, adversely affect an option or right previously granted.

12.  Duration

     The Plan shall remain in effect until all options and rights
granted under the Plan have been exercised or terminated under the
terms of the Plan, provided that options and rights under the Plan
must be granted within ten years from the effective date of the
Plan.






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