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<SEC-DOCUMENT>0000930413-05-008642.txt : 20051230
<SEC-HEADER>0000930413-05-008642.hdr.sgml : 20051230
<ACCEPTANCE-DATETIME>20051229214313
ACCESSION NUMBER:		0000930413-05-008642
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20051031
FILED AS OF DATE:		20051230
DATE AS OF CHANGE:		20051229
EFFECTIVENESS DATE:		20051230

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:		051292802

	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>
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<TEXT>
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002 B000000 WILMINGTON
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008 B000001 A
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008 D030001 19809
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014 B000003 8-032493
014 A000004 J.J.B. HILLIARD W.L. LYONS, INC.
014 B000004 8-033133
014 A000005 PFPC DISTRIBUTORS, INC.
014 B000005 8-045467
014 A000006 OFFIT FUNDS DISTRIBUTOR, INC.
014 B000006 8-46960
014 A000007 ABN AMRO DISTRIBUTION SERVICES (USA), INC.
<PAGE>      PAGE  2
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<PAGE>      PAGE  3
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022 A000010 BANC OF AMERICA
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SIGNATURE   HENRY GABBAY
TITLE       TREASURER

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B
<SEQUENCE>2
<FILENAME>c40220_ex99-77b.txt
<TEXT>
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and Board of Directors of
  The BlackRock Closed-End Funds

<TABLE>
<CAPTION>
<S>                                                 <C>

BlackRock Investment Quality Municipal Trust, Inc.   BlackRock Income Opportunity Trust, Inc.
                                                     BlackRock Core Bond Trust
BlackRock Municipal Income Trust                     BlackRock Income Trust, Inc.
BlackRock California Investment Quality Municipal    BlackRock New Jersey Investment Quality Municipal
     Trust, Inc.                                          Trust, Inc.
BlackRock California Municipal Income Trust          BlackRock Strategic Bond Trust
BlackRock Florida Investment Quality Municipal       BlackRock New York Investment Quality Municipal
     Trust                                                Trust, Inc.
BlackRock Limited Duration Income Trust              BlackRock New Jersey Municipal Income Trust
BlackRock New York Municipal Income Trust            BlackRock Broad Investment Grade 2009 Term Trust,
BCT Subsidiary, Inc.                                 Inc.
BlackRock Florida Municipal Income Trust             BlackRock High Yield Trust
                                                        (each a "Trust" and collectively, the "Trusts")
</TABLE>


In planning and performing our audits of the financial statements of the
BlackRock Closed-End Funds listed above as of and for the year ended October 31,
2005 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 for safeguarding securities, as a basis
for designing our auditing procedures for the purpose of expressing our opinions
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
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 company'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. Such internal control includes policies and procedures
that provide reasonable assurance regarding prevention or timely detection of
unauthorized acquisition, use or disposition of a company's assets that could
have a material effect on the financial statements.

Because of its inherent limitations, internal controls 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 control deficiency 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 significant
deficiency is a control deficiency, or combination of control deficiencies, that
adversely affect the Trust's ability to initiate, authorize, record, process or
report financial data reliably in accordance with generally accepted accounting
principles such that there is more than a remote likelihood that a misstatement
of the Trust's annual or interim financial statements that is more than
inconsequential will not be prevented or detected. A material weakness is a
significant deficiency, or combination of significant deficiencies, that results
in more than a remote likelihood that a material misstatement or the annual or
interim financial statements will not be prevented or detected.

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
significant deficiencies or 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
its operation, including controls for safeguarding securities, that we consider
to be a material weakness as defined above as of October 31, 2005.

This report is intended solely for the information and use of management and the
Board of Directors of the BlackRock Closed-End Funds 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

Registered Public Accounting Firm
Boston, Massachusetts
December 29, 2005





</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
