-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 C63z/T1vSvSFXDAAIXhXqmhjefvC1nxvctWOMnAcUug1hoPWw2mQKFFwh4quFVOJ
 oKBrzbkyW6AJHV2KJP69QA==

<SEC-DOCUMENT>0000950131-01-000966.txt : 20010223
<SEC-HEADER>0000950131-01-000966.hdr.sgml : 20010223
ACCESSION NUMBER:		0000950131-01-000966
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20010214

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MONARCH CASINO & RESORT INC
		CENTRAL INDEX KEY:			0000907242
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MISCELLANEOUS AMUSEMENT & RECREATION [7990]
		IRS NUMBER:				880300760
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		
		SEC FILE NUMBER:	005-49845
		FILM NUMBER:		1539139

	BUSINESS ADDRESS:	
		STREET 1:		1175 W MOANA LANE
		STREET 2:		STE 200
		CITY:			RENO
		STATE:			NV
		ZIP:			89509
		BUSINESS PHONE:		7758253355

	MAIL ADDRESS:	
		STREET 1:		1175 W MOANA LANE
		STREET 2:		STE 200
		CITY:			RENO
		STATE:			NV
		ZIP:			89509

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WANGER ASSET MANAGEMENT LP
		CENTRAL INDEX KEY:			0000908733
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				363820584
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		227 W MONROE STREET
		STREET 2:		SUITE 3000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3126349230

	MAIL ADDRESS:	
		STREET 1:		227 W MONROE ST
		STREET 2:		STE 3000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WANGER ASSET MANAGEMENT  LP
		DATE OF NAME CHANGE:	19960619
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>0001.txt
<DESCRIPTION>AMENDMENT NO. 7
<TEXT>

<PAGE>

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

                                 SCHEDULE 13G

                   Under the Securities Exchange Act of 1934

                              (Amendment  7)*
                                         --
                         Monarch Casino & Resort, Inc.
- --------------------------------------------------------------------------------
                               (Name of Issuer)


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


                                   609027107
- --------------------------------------------------------------------------------
                                (CUSIP Number)


                               December 31, 2000
- --------------------------------------------------------------------------------
            (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).

                               Page 1 of 10 pages
<PAGE>

- ---------------------------                       ----------------------------
    CUSIP NO. 609027107              13G               Page 2 of 10 Pages
              ---------
- ---------------------------                       ----------------------------

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


      Liberty Wanger Asset Management, L.P. 36-3820584
- ------------------------------------------------------------------------------
      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
 2.                                                             (a) [_]
                                                                (b) [_]
      Not Applicable
- ------------------------------------------------------------------------------
      SEC USE ONLY
 3.


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

      Delaware
- ------------------------------------------------------------------------------
                          SOLE VOTING POWER
                     5.
     NUMBER OF
                          None
      SHARES       -----------------------------------------------------------
                          SHARED VOTING POWER
   BENEFICIALLY      6.

     OWNED BY             752,700
                   -----------------------------------------------------------
       EACH               SOLE DISPOSITIVE POWER
                     7.
    REPORTING
                          None
      PERSON       -----------------------------------------------------------
                          SHARED DISPOSITIVE POWER
       WITH          8.
                          752,700
- ------------------------------------------------------------------------------
      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 9.
      752,700
- ------------------------------------------------------------------------------
      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10.
                                                                    [_]
      Not Applicable
- ------------------------------------------------------------------------------
      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11.

      8.0%
- ------------------------------------------------------------------------------
      TYPE OF REPORTING PERSON*
12.
      IA
- ------------------------------------------------------------------------------
                     *SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE>

- ---------------------------                       ----------------------------
    CUSIP NO. 609027107              13G               Page 3 of 10 Pages
              ---------
- ---------------------------                       ----------------------------

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


      WAM Acquisition GP, Inc.
- ------------------------------------------------------------------------------
      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
 2.                                                             (a) [_]
                                                                (b) [_]
      Not Applicable
- ------------------------------------------------------------------------------
      SEC USE ONLY
 3.


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

      Delaware
- ------------------------------------------------------------------------------
                          SOLE VOTING POWER
                     5.
     NUMBER OF
                          None
      SHARES       -----------------------------------------------------------
                          SHARED VOTING POWER
   BENEFICIALLY      6.

     OWNED BY             752,700
                   -----------------------------------------------------------
       EACH               SOLE DISPOSITIVE POWER
                     7.
    REPORTING
                          None
      PERSON       -----------------------------------------------------------
                          SHARED DISPOSITIVE POWER
       WITH          8.
                          752,700
- ------------------------------------------------------------------------------
      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 9.
      752,700
- ------------------------------------------------------------------------------
      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10.
                                                                    [_]
      Not Applicable
- ------------------------------------------------------------------------------
      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11.

      8.0%
- ------------------------------------------------------------------------------
      TYPE OF REPORTING PERSON*
12.
      CO
- ------------------------------------------------------------------------------
                     *SEE INSTRUCTION BEFORE FILLING OUT!

<PAGE>

- ---------------------------                       ----------------------------
    CUSIP NO. 609027107              13G               Page 4 of 10 Pages
              ---------
- ---------------------------                       ----------------------------

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


      Liberty Acorn Trust
- ------------------------------------------------------------------------------
      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
 2.                                                             (a) [_]
                                                                (b) [_]
      Not Applicable
- ------------------------------------------------------------------------------
      SEC USE ONLY
 3.


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

      Massachusetts
- ------------------------------------------------------------------------------
                          SOLE VOTING POWER
                     5.
     NUMBER OF
                          None
      SHARES       -----------------------------------------------------------
                          SHARED VOTING POWER
   BENEFICIALLY      6.

     OWNED BY             535,000
                   -----------------------------------------------------------
       EACH               SOLE DISPOSITIVE POWER
                     7.
    REPORTING
                          None
      PERSON       -----------------------------------------------------------
                          SHARED DISPOSITIVE POWER
       WITH          8.
                          535,000
- ------------------------------------------------------------------------------
      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 9.
      535,000
- ------------------------------------------------------------------------------
      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10.
                                                                    [_]
      Not Applicable
- ------------------------------------------------------------------------------
      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11.

      5.7%
- ------------------------------------------------------------------------------
      TYPE OF REPORTING PERSON*
12.
      IV
- ------------------------------------------------------------------------------
                     *SEE INSTRUCTION BEFORE FILLING OUT!

<PAGE>

Item 1(a)      Name of Issuer:

               Monarch Casino & Resort, Inc.

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

               1175 W Moana Lane, Suite 200
               Reno, NV 89509

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")
               Liberty Acorn Trust ("Acorn")

Item 2(b)      Address of Principal Business Office:

               WAM, WAM GP and Acorn are all located at:

               227 West Monroe Street, Suite 3000
               Chicago, Illinois  60606

Item 2(c)      Citizenship:

               WAM is a Delaware limited partnership; WAM GP is a Delaware
               corporation; and Acorn is a Massachusetts business trust.

Item 2(d)      Title of Class of Securities:

               Common Stock

Item 2(e)      CUSIP Number:

               609027107

Item 3         Type of Person:

               (d)  Acorn is an Investment Company under section 8 of the
                    Investment Company Act.

               (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 5 of 10 pages
<PAGE>

Item 4         Ownership (at December 31, 2000):

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

                    752,700

               (b)  Percent of class:

                    8.0% (based on 9,436,275 shares outstanding as of November
                    9, 2000)

               (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:
                          752,700
                    (iii) sole power to dispose or to direct the
                          disposition of:  none
                    (iv)  shared power to dispose or to direct
                          disposition of:  752,700

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

               Not Applicable

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

               The shares reported herein have been acquired on behalf of
               discretionary clients of WAM, including Acorn. Persons other than
               WAM and WAM GP are entitled to receive all dividends from, and
               proceeds from the sale of, those shares. Acorn is the only such
               person known to be entitled to all dividends from, and all
               proceeds from the sale of, shares reported herein to the extent
               of more than 5% of the class.

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 6 of 10 pages
<PAGE>

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 7 of 10 pages
<PAGE>

                                   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 14, 2001

               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


               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.

                                 LIBERTY ACORN TRUST

                                 By: /s/ Bruce H. Lauer
                                     -----------------------------------------
                                         Bruce H. Lauer
                                         Vice President, Treasurer and
                                         Assistant Secretary

                               Page 8 of 10 pages
<PAGE>

                                 Exhibit Index
                                 -------------

Exhibit 1                Joint Filing Agreement dated as of February 14, 2001 by
                         and among Liberty Wanger Asset Management, L.P., WAM
                         Acquisition GP, Inc. and Liberty Acorn Trust

                               Page 9 of 10 pages
<PAGE>

                                                                       EXHIBIT 1

                            JOINT FILING AGREEMENT

     The undersigned hereby agree to the joint filing of the Schedule 13G to
which this Agreement is attached.

               Dated:  February 14, 2001

                                          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


                                          LIBERTY ACORN TRUST


                                          By: /s/ Bruce H. Lauer
                                             -----------------------------------
                                                  Bruce H. Lauer
                                                  Vice President, Treasurer and
                                                  Assistant Secretary

                              Page 10 of 10 pages
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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