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<SEC-DOCUMENT>0000930413-07-009662.txt : 20071228
<SEC-HEADER>0000930413-07-009662.hdr.sgml : 20071228
<ACCEPTANCE-DATETIME>20071228093650
ACCESSION NUMBER:		0000930413-07-009662
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20071031
FILED AS OF DATE:		20071228
DATE AS OF CHANGE:		20071228
EFFECTIVENESS DATE:		20071228

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST INC
		CENTRAL INDEX KEY:			0000894242
		IRS NUMBER:				133690436
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		NSAR-B
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-07354
		FILM NUMBER:		071330348

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		STREET 2:		MUTUAL FUND DEPARTMENT
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		888-825-2257

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		STREET 2:		MUTUAL FUND DEPARTMENT
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-B
<SEQUENCE>1
<FILENAME>c51498_nsarb.fil
<TEXT>
<PAGE>      PAGE  1
000 B000000 10/31/2007
000 C000000 894242
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 BLACKROCK INVESTMENT QUALITY MUNICIPAL TRUST
001 B000000 811-07354
001 C000000 8888252257
002 A000000 100 BELLEVUE PARKWAY
002 B000000 WILMINGTON
002 C000000 DE
002 D010000 19809
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 N
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008 B000001 A
008 C000001 801-47710
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008 D020001 DE
008 D030001 19809
008 A000002 BLACKROCK FINANCIAL MANAGEMENT, INC.
008 B000002 A
008 C000002 801-48433
008 D010002 NEW YORK
008 D020002 NY
008 D030002 10022
012 A000001 COMPUTERSHARE TRUST COMPANY, NA
012 B000001 85-11340
012 C010001 CANTON
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013 B010001 BOSTON
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<PAGE>      PAGE  2
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<PAGE>      PAGE  3
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022 B000006 13-2518466
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022 B000007 13-3379014
022 C000007      8612
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022 A000008 WACHOVIA CAPITAL MARKETS
022 C000008      5391
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SIGNATURE   DONALD C. BURKE
TITLE       TREASURER

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B
<SEQUENCE>2
<FILENAME>c51498_ex99-77b.txt
<TEXT>
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors, Trustees and Shareholders of:

       BlackRock Investment Quality Municipal Trust Inc.
       BlackRock Municipal Income Trust
       BlackRock Long-Term Municipal Advantage Trust
       BlackRock California Investment Quality Municipal Trust Inc.
       BlackRock California Municipal Income Trust
       BlackRock Florida Investment Quality Municipal Trust Inc.
       BlackRock Florida Municipal Income Trust
       BlackRock New Jersey Investment Quality Municipal Trust Inc.
       BlackRock New Jersey Municipal Income Trust
       BlackRock New York Investment Quality Municipal Trust Inc.
       BlackRock New York Municipal Income Trust
       (each a "Trust" and collectively, the "Trusts")

In planning and performing our audits of the financial  statements of the Trusts
listed above as of and for the year ended October 31, 2007,  in accordance  with
the standards of the Public Company Accounting  Oversight Board (United States),
we considered their internal control over financial reporting, including control
activities over safeguarding  securities,  as a basis for designing our auditing
procedures for the purpose of expressing our opinion on the financial statements
and to comply with the  requirements  of Form N-SAR,  but not for the purpose of
expressing an opinion on the  effectiveness of the Trusts' internal control over
financial reporting. Accordingly, we express no such opinion.

The management of the Trusts is responsible  for  establishing  and  maintaining
effective  internal  control  over  financial  reporting.   In  fulfilling  this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of controls. A trust's internal control over
financial  reporting  is a process  designed  to  provide  reasonable  assurance
regarding  the  reliability  of  financial  reporting  and  the  preparation  of
financial statements for external purposes in accordance with generally accepted
accounting  principles.  A trust's  internal  control over  financial  reporting
includes those policies and  procedures  that (1) pertain to the  maintenance of
records  that,  in  reasonable   detail,   accurately  and  fairly  reflect  the
transactions and dispositions of the assets of the trust; (2) provide reasonable
assurance that  transactions are recorded as necessary to permit  preparation of
financial   statements  in  accordance   with  generally   accepted   accounting
principles,  and that receipts and expenditures of the trust are being made only
in accordance with  authorizations of management and  directors/trustees  of the
trust;  and (3) provide  reasonable  assurance  regarding  prevention  or timely
detection of unauthorized  acquisition,  use, or disposition of a trust's assets
that could have a material effect on the financial statements.

Because of its inherent  limitations,  internal control over financial reporting
may not prevent or detect misstatements.  Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that controls may become
inadequate  because of changes in  conditions,  or that the degree of compliance
with the policies or procedures may deteriorate.

A deficiency in internal control over financial reporting exists when the design
or operation of a control does not allow management or employees,  in the normal
course  of  performing   their   assigned   functions,   to  prevent  or  detect
misstatements  on a timely  basis.  A material  weakness is a  deficiency,  or a
combination of deficiencies,  in internal control over financial reporting, such
that  there is a  reasonable  possibility  that a material  misstatement  of the
trust's annual or interim financial statements will not be prevented or detected
on a timely basis.

Our  consideration of the Trusts' internal control over financial  reporting was
for  the  limited  purpose  described  in the  first  paragraph  and  would  not
necessarily disclose all deficiencies in internal control that might be material
weaknesses  under  standards   established  by  the  Public  Company  Accounting
Oversight  Board  (United  States).  However,  we noted no  deficiencies  in the
Trusts'  internal  controls  over  financial   reporting  and  their  operation,
including  controls  for  safeguarding  securities'  that  we  consider  to be a
material weakness as defined above as of October 31, 2007.

This report is intended solely for the  information  and use of management,  the
Board of Directors,  Trustees of the Trusts listed above and the  Securities and
Exchange  Commission  and is not intended to be and should not be used by anyone
other than these specified parties.




/s/ Deloitte & Touche LLP


Boston, Massachusetts
December 24, 2007
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O
<SEQUENCE>3
<FILENAME>c51498_ex99-77o.txt
<TEXT>

                                   FORM 10f-3

                               THE BLACKROCK FUNDS

                         RECORD OF SECURITIES PURCHASED
                     UNDER THE TRUST'S RULE 10f-3 PROCEDURES

1.    Name of Purchasing Portfolio: BlackRock MuniYield Fund, Inc. (MYD),
      BlackRock MuniHoldings Fund, Inc. (MHD), BlackRock MuniHoldings Fund II,
      Inc. (MUH), BlackRock Long-Term Municipal Advantage Trust (BTA), BlackRock
      Municipal Income Trust II (BLE), BlackRock Municipal Income Trust (BFK),
      BlackRock Municipal Bond Trust (BBK), BlackRock Investment Quality
      Municipal Trust (BKN), BlackRock Strategic Municipal Trust (BSD),
      BlackRock California Insured Municipal Bond Fund (BR-CAINS), BlackRock
      MuniHoldings California Insured Fund, Inc. (MUC), BlackRock MuniYield
      California Insured Fund, Inc. (MCA2), BlackRock California Insured
      Municipal Income Trust (BCK), BlackRock MuniYield New Jersey Fund, Inc.
      (MYJ), BlackRock New Jersey Municipal Bond Fund (BR-NJMUNI), The BlackRock
      NJ Investment Quality Municipal Trust (RNJ), BlackRock New Jersey
      Municipal Income Trust (BNJ), BlackRock Virginia Municipal Bond Trust
      (BHV), BlackRock Delaware Municipal Bond Portfolio (BR-DE), Separate
      Accounts, P.I.

2.    Issuer: Puerto Rico Electric Power Authority

3.    Date of Purchase: 4/20/2007

4.    Underwriter from whom purchased: J.P. Morgan

5.    Name of Affiliated Underwriter (as defined in the Trust's procedures)
      managing or participating in syndicate: Merrill Lynch

<PAGE>

6.    Aggregate principal amount of purchased (out of total offering):
      $96,025,000 out of $1,943,565,000.

7.    Aggregate principal amount purchased by funds advised by BlackRock and any
      purchases by other accounts with respect to which BlackRock has investment
      discretion (out of the total offering):
      $132,370,000 out of $1,943,565,000.

8.    Purchase price (net of fees and expenses): 107.456 in 2014, 107.983 of
      5.00 in 2015, 101.037 of 4.00 in 2015, 108.560 in 2016, 107.068 IN
      2017, 106.726 IN 2018, 109.550 in 2019, 106.130 IN 2020, 108.017 in
      2020, 105.876 IN 2021, 107.757 in 2021, 105.707 IN 2022, 107.498 in
      2022, 105.454 IN 2023, 107.326 in 2023, 107.154 in 2024, 104.867 in
      2032, and 100 in 2029.

9.    Date offering commenced: 4/18/2007

10.   Offering price at end of first day on which any sales were made:

11.   Have the following conditions been satisfied:                    YES    NO
                                                                       ---   ---

      a.    The securities are part of an issue registered
            under the Securities Act of 1933, as amended,
            which is being offered to the public, OR are
            Eligible Municipal Securities, OR are securities
            sold in an Eligible Foreign offering OR are
            securities sold in an Eligible Rule 144A
            Offering OR part of an issue of government
            securities.                                                [X]   [ ]

      b.    The securities were purchased prior to the end of
            the first day on which any sales were made, at a
            price that was not more than the price paid by
            each other purchaser of securities in that
            offering or in any concurrent offering of the
            securities (except, in the case of an Eligible
            Foreign Offering, for any rights to purchase
            required by laws to be granted to existing
            security holders of the

<PAGE>

            Issuer) OR, if a rights offering, the
            securities were purchased on or before the
            fourth day preceding the day on which the
            rights offering terminated.                                [X]   [ ]

      c.    The underwriting was a firm commitment
            underwriting.                                              [X]   [ ]

      d.    The commission, spread or profit was reasonable
            and fair in relation to that being received by
            others for underwriting similar securities
            during the same period.                                    [X]   [ ]

      e.    In respect of any securities other than Eligible
            Municipal Securities, the issuer of such
            securities has been in continuous operation for
            not less than three years (including the
            operations of predecessors).                               [X]   [ ]

      f.    Has the affiliated underwriter confirmed that it
            will not receive any direct or indirect benefit
            as a result of BlackRock's participation in the
            offering?                                                  [X]   [ ]

Received from: Janine Bianchino                                   Date: 5/3/07

<PAGE>


                                   FORM 10f-3

                               THE BLACKROCK FUNDS

                         RECORD OF SECURITIES PURCHASED
                     UNDER THE TRUST'S RULE 10f-3 PROCEDURES

1.    Name of Purchasing Portfolio: BlackRock National Municipal Fund (BR-
      NATL), BlackRock AMT-Free Municipal Bond Portfolio (BR-MUNI), BlackRock
      Apex Municipal Fund, Inc. (APX), BlackRock MuniAssets Fund, Inc. (MUA),
      BlackRock High Yield Municipal (BR-HYMUNI), BlackRock Investment Quality
      Municipal Trust (BKN), BlackRock Strategic Municipal Trust (BSD)

2.    Issuer: VA TOBACCO FIN CORP

3.    Date of Purchase: April 27, 2007

4.    Underwriter from whom purchased: Bear Stearns

5.    Name of Affiliated Underwriter (as defined in the Trust's procedures)
      managing or participating in syndicate: Merrill Lynch

6.    Aggregate principal amount of purchased (out of total offering):
      $19,250,000 out of $1,149,273,282.50

7.    Aggregate principal amount purchased by funds advised by BlackRock and any
      purchases by other accounts with respect to which BlackRock has investment
      discretion (out of the total offering):
      $19,250,000 out of $1,149,273,282.50

8.    Purchase price (net of fees and expenses): 97.961 of 2047

9.    Date offering commenced: April 26, 2007

10.   Offering price at end of first day on which any sales were made:

<PAGE>

                                                                       YES    NO
                                                                       ---   ---

      b.    The securities were purchased prior to the end
            of the first day on which any sales were made,
            at a price that was not more than the price paid
            by each other purchaser of securities in that
            offering or in any concurrent offering of the
            securities (except, in the case of an Eligible
            Foreign Offering, for any rights to purchase
            required by laws to be granted to existing
            security holders of the Issuer) OR, if a rights
            offering, the securities were purchased on or
            before the fourth day preceding the day on which
            the rights offering terminated.                            [X]   [ ]

      c.    The underwriting was a firm commitment
            underwriting.                                              [X]   [ ]

      d.    The commission, spread or profit was reasonable
            and fair in relation to that being received by
            others for underwriting similar securities
            during the same period.                                    [X]   [ ]

      e.    In respect of any securities other than Eligible
            Municipal Securities, the issuer of such
            securities has been in continuous operation for
            not less than three years (including the
            operations of predecessors).                               [X]   [ ]

      f.    Has the affiliated underwriter confirmed that it
            will not receive any direct or indirect benefit
            as a result of BlackRock's participation in the
            offering?                                                  [X]   [ ]

Approved: Dan Chen                                                Date: 5/9/07
<PAGE>

                                   FORM 10f-3

                               THE BLACKROCK FUNDS
                         RECORD OF SECURITIES PURCHASED

                     UNDER THE TRUST'S RULE 10f-3 PROCEDURES

1.    Name of Purchasing Portfolio: BlackRock Municipal Bond Trust (BBK),
      BlackRock Municipal Income Trust (BFK), BlackRock Investment Quality
      Municipal Trust (BKN), BlackRock Municipal Income Trust II (BLE),
      BlackRock National Municipal Fund (BR-NATL), BlackRock Strategic Municipal
      Trust (BSD), BlackRock MuniHoldings Fund, Inc. (MHD), BlackRock
      MuniHoldings Fund II, Inc. (MUH), BlackRock MuniYield Fund, Inc. (MYD),
      BlackRock California Municipal Income Trust II (BCL), BlackRock California
      Municipal Income Trust (BFZ), BlackRock AMT-Free Municipal Bond Portfolio
      (BR-MUNI), BlackRock California Municipal Bond Trust (BZA), BlackRock
      MuniVest Fund, Inc. (MVF), BlackRock MuniVest Fund II, Inc. (MVT),
      BlackRock MuniYield California Fund, Inc. (MYC), BlackRock MuniYield
      Insured Fund, Inc (MYI), PI

2.    Issuer: California State GO

3.    Date of Purchase: June 21, 2007

4.    Underwriter from whom purchased: Citigroup Global Markets Inc.

5.    Name of Affiliated Underwriter (as defined in the Trust's procedures)
      managing or participating in syndicate: Merrill Lynch & Co.

6.    Aggregate principal amount of purchased (out of total offering):
      $150,130,000 out of $2,500,000,000

7.    Aggregate principal amount purchased by funds advised by BlackRock and any
      purchases by other accounts with respect to which BlackRock has investment
      discretion (out of the total offering): $150,130,000 out of $2,500,000,000

8.    Purchase price (net of fees and expenses): 104.427 in 2012, 104.795 in
      2013, 105.190 in 2014, 102.408 in 2015, 105.756 in 2015, 102.285 in 2016,
      105.976 in 2016, 106.101 in 2017, 102.035 in 2032, 101.718 in 2037.

9.    Date offering commenced: June 21, 2007

10.   Offering price at end of first day on which any sales were made:

<PAGE>

11.   Have the following conditions been satisfied:                    YES    NO
                                                                       ---   ---

      a.    The securities are part of an issue
            registered under the Securities Act of 1933, as
            amended, which is being offered to the public,
            OR are Eligible Municipal Securities, OR are
            securities sold in an Eligible Foreign Offering
            OR are securities sold in an Eligible Rule 144A
            Offering OR part of an issue of government
            securities.                                                [X]   [ ]

      b.    The securities were purchased prior to the end
            of the first day on which any sales were made,
            at a price that was not more than the price paid
            by each other purchaser of securities in that
            offering or in any concurrent offering of the
            securities (except, in the case of an Eligible
            Foreign Offering, for any rights to purchase
            required by laws to be granted to existing
            security holders of the Issuer) OR, if a rights
            offering, the securities were purchased on or
            before the fourth day preceding the day on which
            the rights offering terminated.                            [X]   [ ]

      c.    The underwriting was a firm commitment
            underwriting.                                              [X]   [ ]

      d.    The commission, spread or profit was reasonable
            and fair in relation to that being received by
            others for underwriting similar securities
            during the same period.                                    [X]   [ ]

      e.    In respect of any securities other than Eligible
            Municipal Securities, the issuer of such
            securities has been in continuous operation for
            not less than three years (including the
            operations of predecessors).                               [X]   [ ]

      f.    Has the affiliated underwriter confirmed that
            it will not receive any direct or indirect
            benefit as a result of BlackRock's participation
            in the offering?                                           [X]   [ ]

      Received from: Janine Bianchino                            Date: 6/21/07
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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