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

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number:__811-07664______

_______BlackRock California Investment Quality Municipal Trust, Inc._______
(Exact name of registrant as specified in charter)

100 Bellevue Parkway, Wilmington, DE
19809
(Address of principal executive offices)
(Zip code)
     

 

Robert S. Kapito, President

BlackRock California Investment Quality Municipal Trust, Inc.

__________40 East 52nd Street, New York, NY 10022__________
(Name and address of agent for service)

Registrant's telephone number, including area code:_888-825-2257__________________

Date of fiscal year end: October 31, 2005

Date of reporting period:__January 31, 2005_________________________________

Item 1. Schedule of Investments.

The registrant’s unaudited schedule of investments as of the close of the reporting period pursuant to Rule 30b1-5 under the Investment Company Act of 1940 is as follows:

PORTFOLIO OF INVESTMENTS
JANUARY 31, 2005

BlackRock California Investment Quality Municipal Trust (RAA)

         
Principal      
Amount   Option Call  
Rating1 (000)
Description
Provisions2 Value     
    LONG-TERM INVESTMENTS—112.2%    
      California—104.6%    
      California, GO,    
A $  960 3,4     5.75%, 3/01/05 N/A $ 972,441  
A 40       5.75%, 3/01/19 09/05 @ 101 40,512  
BBB 1,000   California Cnty. Tobacco Sec. Agcy., Ser. B, 6.00%, 6/01/29 06/12 @ 100 992,320  
      California Edl. Facs. Auth., MBIA,    
AAA 7603       Santa Clara Univ. Proj., 5.00%, 9/01/06 N/A 808,108  
AAA 505       Student Loan Prog., Ser. A, 6.00%, 3/01/16 03/07 @ 102 533,189  
A- 1,000   California Pub. Wks. Brd., Lease Rev., St. Univ. Proj., Ser. A, 6.10%, 10/01/06 03/05 @ 102 1,026,410  
      Golden St. Tobacco Sec. Corp., Ser. B,    
A- 600       5.50%, 6/01/43 06/13 @ 100 640,500  
A- 400       5.625%, 6/01/38 06/13 @ 100 430,728  
      Los Angeles Cnty.,    
AAA 1,000       Cmnty. Facs. Spec. Tax, Ser. A, 5.50%, 9/01/14, FSA 09/07 @ 102 1,101,680  
AAA 1,000 3     Met. Trans. Auth. Sales Tax Rev., 6.00%, 7/01/06, MBIA N/A 1,062,910  
AA 1,150   Los Angeles Harbor Dept., Ser. B, 6.00%, 8/01/13 08/06 @ 101 1,215,401  
B- 945   Los Angeles Regl. Arpt. Impvt., Corp. Lease Rev., Amer. Airlines, Inc. Proj.,    
          Ser. B, 7.50%, 12/01/24 12/12 @ 102 936,712  
NR 1,000   Poway Unified Sch. Dist., Spl. Tax Rev., Cmnty. Facs. Dist. No. 6 Proj., 5.60%,    
          9/01/33 09/10 @ 102 1,006,500  
BBB+ 1,000   Sacramento Pwr. Auth. Rev., Cogeneration Proj., 6.50%, 7/01/09 07/06 @ 102 1,070,040  
NR 1,000   San Bernardino Cnty., Spl. Tax Rev., Cmnty. Facs., 5.90%, 9/01/33 09/12 @ 102 1,005,760  
AAA 500   San Diego Ind. Dev., Ser. A, 5.90%, 6/01/18, AMBAC 03/05 @ 101 506,810  
AAA 150   San Francisco City & Cnty. Arpt. Comm., Intl. Arpt. Rev., Ser. 12-A, 5.90%,    
          5/01/26, MBIA 05/06 @ 101 158,364  
AAA 40   So. California Pub. Pwr. Auth. Rev., Transm. Proj., 5.50%, 7/01/20, MBIA 03/05 @ 100 40,108  
AAA 500   Temecula Valley Unified Sch. Dist., GO, Ser. G, 5.75%, 8/01/25, FGIC 08/07 @ 102 549,355  
BBB 900   Tobacco Sec. Auth. So. California, Tobacco Settlement Rev., Ser. A, 5.625%,    
          6/01/43 06/12 @ 100 813,690  
AAA 370   West Basin Mun. Wtr. Dist., COP, Ser. A, 5.50%, 8/01/22, AMBAC 08/07 @ 101 399,596  
          15,311,134  
      Puerto Rico—7.6%    
      Puerto Rico Pub. Fin. Corp., Ser. E,    
AAA 745 3     5.50%, 2/01/12 N/A 847,125  
BBB+ 255       5.50%, 8/01/29 02/12 @ 100 272,679  
          1,119,804  
      Total Long-Term Investments (cost $15,432,615)   16,430,938  
  Shares        
  (000)        
      MONEY MARKET FUNDS—9.6%    
  700   AIM Tax Free Investment Co. Cash Reserve Portfolio N/A 700,000  
  700   SSgA Tax Free Money Mkt. Fund N/A 700,000  
      Total Money Market Funds (cost $1,400,000)   1,400,000  
      Total Investments—121.8% (cost $16,832,615)   $ 17,830,938  
      Other assets in excess of liabilities—29.4%   4,311,565  
      Preferred shares at redemption value, including dividends payable—(51.2)%   (7,501,233)  
      Net Assets Applicable to Common Shareholders—100%   $ 14,641,270  

 
1   Using the higher of Standard & Poor’s, Moody’s Investors Service or Fitch’s rating.  
2   Date (month/year) and price of the earliest call or redemption. There may be other call provisions at varying prices at later dates.  
3   This bond is prerefunded. U.S. government securities, held in escrow, are used to pay interest on this security, as well as retire the bond in full at the date indicated, typically at a premium to par.  
4   Entire or partial principal amount pledged as collateral for financial futures contracts. 
KEY TO ABBREVIATIONS
AMBAC — American Municipal Bond Assurance Corp. FSA — Financial Security Assurance
COP — Certificate of Participation GO — General Obligation
FGIC — Financial Guaranty Insurance Co. MBIA   Municipal Bond Insurance Assoc.

1


Item 2. Controls and Procedures.

(a) The registrant's principal executive officer and principal financial officer have evaluated the registrant's disclosure controls and procedures within 90 days of this filing and have concluded that the registrant’s disclosure controls and procedures are effective, as of that date, in ensuring that information required to be disclosed by the registrant in this Form N-Q was recorded, processed, summarized, and reported timely.

(b) The registrant's principal executive officer and principal financial officer are aware of no changes in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting.

Item 3. Exhibits.

Separate certifications of the registrant’s principal executive and financial officers pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 are attached as EX-99.CERT.

SIGNATURES

          Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant)___BlackRock California Investment Quality Municipal Trust, Inc.___

By:    /s/ Henry Gabbay                                                                                                            
Name: Henry Gabbay
Title: Treasurer
Date: April 1, 2005

          Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By:    /s/ Robert S. Kapito                                                                                                        
Name: Robert S. Kapito
Title: Principal Executive Officer
Date: April 1, 2005

By:    /s/ Henry Gabbay                                                                                                             
Name: Henry Gabbay
Title: Principal Financial Officer
Date: April 1, 2005