UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                               (Amendment No. 1)*
                                             --

                              Station Casinos, Inc.
             -------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
             -------------------------------------------------------
                         (Title of Class of Securities)

                                    857689103
             -------------------------------------------------------
                                 (CUSIP Number)


                                December 31, 2002
             -------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)


      Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

                                [x] Rule 13d-1(b)
                                [ ] Rule 13d-1(c)
                                [ ] Rule 13d-1(d)


*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).

SEC 1745(2/92)

                                Page 1 of 9 pages

          ---------                                            -----------------
CUSIP No. 857689103                   13G                      Page 2 of 9 pages
          ---------                                            -----------------

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1        NAME OF REPORTING PERSON
         S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Liberty Wanger Asset Management, L.P. 36-3820584
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

         Not Applicable                                                  (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
3        SEC USE ONLY

--------------------------------------------------------------------------------
4        CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
--------------------------------------------------------------------------------
   NUMBER OF      5        SOLE VOTING POWER

    SHARES                 None
                  --------------------------------------------------------------
 BENEFICIALLY     6        SHARED VOTING POWER

   OWNED BY                1,350,000
                  --------------------------------------------------------------
     EACH         7        SOLE DISPOSITIVE POWER

   REPORTING               None
                  --------------------------------------------------------------
    PERSON        8        SHARED DISPOSITIVE POWER

     WITH                  1,350,000
--------------------------------------------------------------------------------
9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,350,000
--------------------------------------------------------------------------------
10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

         Not Applicable
--------------------------------------------------------------------------------
11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

         2.3%
--------------------------------------------------------------------------------
12       TYPE OF REPORTING PERSON*

         IA
--------------------------------------------------------------------------------
                      *SEE INSTRUCTION BEFORE FILLING OUT!

          ---------                                            -----------------
CUSIP No. 857689103                   13G                      Page 3 of 9 pages
          ---------                                            -----------------

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1        NAME OF REPORTING PERSON
         S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         WAM Acquisition GP, Inc.
--------------------------------------------------------------------------------
2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

         Not Applicable                                                  (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
3        SEC USE ONLY

--------------------------------------------------------------------------------
4        CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware
--------------------------------------------------------------------------------
   NUMBER OF      5        SOLE VOTING POWER

    SHARES                 None
                  --------------------------------------------------------------
 BENEFICIALLY     6        SHARED VOTING POWER

   OWNED BY                1,350,000
                  --------------------------------------------------------------
    EACH          7        SOLE DISPOSITIVE POWER

  REPORTING                None
                  --------------------------------------------------------------
   PERSON         8        SHARED DISPOSITIVE POWER

    WITH                   1,350,000
--------------------------------------------------------------------------------
9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,350,000
--------------------------------------------------------------------------------
10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

         Not Applicable
--------------------------------------------------------------------------------
11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

         2.3%
--------------------------------------------------------------------------------
12       TYPE OF REPORTING PERSON*

         CO
--------------------------------------------------------------------------------
                      *SEE INSTRUCTION BEFORE FILLING OUT!

Item 1(a)         Name of Issuer:

                        Station Casinos, Inc.

Item 1(b)         Address of Issuer's Principal Executive Offices:

                        2411 West Sahara Avenue
                        Las Vegas, Nevada  89102

Item 2(a)         Name of Person Filing:

                        Liberty Wanger Asset Management, L.P. ("WAM")
                        WAM Acquisition GP, Inc., the general partner of WAM
                        ("WAM GP")

Item 2(b)         Address of Principal Business Office:

                        WAM and WAM GP are all located at:

                        227 West Monroe Street, Suite 3000
                        Chicago, Illinois  60606

Item 2(c)         Citizenship:

                        WAM is a Delaware limited partnership; and WAM GP is a
                        Delaware corporation.

Item 2(d)         Title of Class of Securities:

                        Common Stock

Item 2(e)         CUSIP Number:

                        857689103

Item 3            Type of Person:

                        (e)   WAM is an Investment Adviser registered under
                              section 203 of the Investment Advisers Act of
                              1940; WAM GP is the General Partner of the
                              Investment Adviser.


                                Page 4 of 9 pages

Item 4            Ownership (at December 31, 2002):

                        (a)   Amount owned "beneficially" within the meaning of
                              rule 13d-3:

                              1,350,000

                        (b)   Percent of class:

                              2.3% (based on 57,768,580 shares outstanding as
                              of October 31, 2002, reported in Form 10-Q filed
                              on November 14, 2002).

                        (c)   Number of shares as to which such person has:

                                    (i)   sole power to vote or to direct the
                                          vote: none

                                    (ii)  shared power to vote or to direct the
                                          vote: 1,350,000

                                    (iii) sole power to dispose or to direct the
                                          disposition of: none

                                    (iv)  shared power to dispose or to direct
                                          disposition of: 1,350,000


Item 5            Ownership of Five Percent or Less of a Class:

                        If this statement is being filed to report the fact that
                        as of the date hereof the reporting person has ceased to
                        be the beneficial owner of more than five percent of the
                        class of securities, check the following: [x]

Item 6            Ownership of More than Five Percent on Behalf of Another
                  Person:

                        Not Applicable

Item 7            Identification and Classification of the Subsidiary Which
                  Acquired the Security Being Reported on by the Parent Holding
                  Company:

                        Not Applicable

Item 8            Identification and Classification of Members of the Group:

                        Not Applicable

Item 9            Notice of Dissolution of Group:

                        Not Applicable


                                Page 5 of 9 pages

Item 10           Certification:

                  By signing below I certify that, to the best of my knowledge
                  and belief, the securities referred to above were acquired and
                  are held in the ordinary course of business and were not
                  acquired and are not held for the purpose of or with the
                  effect of changing or influencing the control of the issuer of
                  the securities and were not acquired and are not held in
                  connection with or as a participant in any transaction having
                  that purpose or effect.


                                Page 6 of 9 pages

                                    Signature

      After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Date: February 13, 2003


                  The undersigned corporation, on the date above written, agrees
                  and consents to the joint filing on its behalf of this
                  Schedule 13G in connection with its beneficial ownership of
                  the security reported herein.

                                   WAM Acquisition GP, Inc.
                                     for itself and as general partner of
                                     LIBERTY WANGER ASSET MANAGEMENT, L.P.



                                   By:  /s/ Bruce H. Lauer
                                        ---------------------------------------
                                            Bruce H. Lauer
                                            Senior Vice President and Secretary


                                Page 7 of 9 pages

                                  Exhibit Index


               
Exhibit 1         Joint Filing Agreement dated as of February 13, 2003 by and
                  among Liberty Wanger Asset Management, L.P. and WAM
                  Acquisition GP, Inc.



                                Page 8 of 9 pages