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 811-06502 Name of Fund: BlackRock MuniYield Florida Fund Fund Address: P.O. Box 9011 Princeton, NJ 08543-9011 Name and address of agent for service: Robert C. Doll, Jr., Chief Executive Officer (principal executive officer), BlackRock MuniYield Florida Fund, 800 Scudders Mill Road, Plainsboro, NJ, 08536. Mailing address: P.O. Box 9011, Princeton, NJ, 08543-9011 Registrant's telephone number, including area code: (800) 882-0052 Date of fiscal year end: 10/31/2007 Date of reporting period: 05/01/2007 - 07/31/2007 Item 1 - Schedule of Investments BlackRock MuniYield Florida Fund Schedule of Investments as of July 31, 2007 (Unaudited) (in Thousands) Face Amount Municipal Bonds Value California - 0.5% $ 1,000 Golden State Tobacco Securitization Corporation of California, Tobacco Settlement Revenue Refunding Bonds, Senior Series A-1, 5.75% due 6/01/2047 $ 1,030 District of 1,000 Metropolitan Washington Airports Authority, D.C., Airport System Revenue Bonds, AMT, Columbia - 0.5% Series A, 5.25% due 10/01/2032 (f) 1,028 Florida - 131.5% 2,100 Alachua County, Florida, School Board, COP, 5.25% due 7/01/2029 (b) 2,199 1,505 Arbor Greene Community Development District, Florida, Special Assessment Revenue Refunding Bonds, 5% due 5/01/2019 1,555 2,420 Bay County, Florida, Sales Tax Revenue Bonds, 5% due 9/01/2027 (b) 2,520 2,000 Beacon Tradeport Community Development District, Florida, Special Assessment Revenue Refunding Bonds (Commercial Project), Series A, 5.625% due 5/01/2032 (o) 2,090 2,870 Broward County, Florida, Airport System Revenue Bonds, AMT, Series I, 5.75% due 10/01/2018 (b) 3,060 2,750 Broward County, Florida, Educational Facilities Authority Revenue Bonds (Nova Southeastern University), 5% due 4/01/2031 (c) 2,830 1,000 Broward County, Florida, Educational Facilities Authority Revenue Bonds (Nova Southeastern University), Series B, 5.625% due 4/01/2034 1,032 1,750 Cape Coral, Florida, Special Obligation Revenue Bonds, 5% due 10/01/2023 (m) 1,830 2,060 Cape Coral, Florida, Special Obligation Revenue Bonds, 5% due 10/01/2026 (m) 2,143 2,425 Cape Coral, Florida, Special Obligation Revenue Bonds, 5% due 10/01/2033 (m) 2,508 2,240 Citrus County, Florida, Hospital Board Revenue Refunding Bonds (Citrus Memorial Hospital), 6.25% due 8/15/2023 2,396 2,850 Citrus County, Florida, Hospital Board Revenue Refunding Bonds (Citrus Memorial Hospital), 6.375% due 8/15/2032 3,058 460 Collier County, Florida, IDA, IDR, Refunding (Southern States Utilities), AMT, 6.50% due 10/01/2025 462 2,100 Collier County, Florida, School Board, COP, 5% due 2/15/2027 (j) 2,181 945 Duval County, Florida, HFA, S/F Mortgage Revenue Refunding Bonds, AMT, 5.40% due 10/01/2021 (h) 955 1,630 Duval County, Florida, HFA, S/F Mortgage Revenue Refunding Bonds, AMT, 5.85% due 10/01/2027 (h)(m) 1,670 Portfolio Abbreviations To simplify the listings of BlackRock MuniYield Florida Fund's portfolio holdings in the Schedule of Investments, we have abbreviated the names of many of the securities according to the list below. AMT Alternative Minimum Tax (subject to) COP Certificates of Participation DRIVERS Derivative Inverse Tax-Exempt Receipts EDA Economic Development Authority GO General Obligation Bonds HFA Housing Finance Agency IDA Industrial Development Authority IDR Industrial Development Revenue Bonds S/F Single-Family BlackRock MuniYield Florida Fund Schedule of Investments as of July 31, 2007 (Unaudited) (concluded) (in Thousands) Face Amount Municipal Bonds Value Florida $ 1,800 Florida Housing Finance Corporation, Homeowner Mortgage Revenue Bonds, AMT, (concluded) Series 3, 5.15% due 7/01/2038 (g)(h) $ 1,807 440 Florida Housing Finance Corporation, Homeowner Mortgage Revenue Refunding Bonds, AMT, Series 4, 6.25% due 7/01/2022 (j) 455 1,580 Florida Municipal Loan Council Revenue Bonds, Series A-1, 5.125% due 7/01/2034 (m) 1,634 4,250 Florida Municipal Loan Council Revenue Bonds, Series B, 5.375% due 11/01/2030 (m) 4,440 2,500 Florida State Board of Education, GO (Public Education Capital Outlay), Series J, 5% due 6/01/2031 2,574 1,000 Florida State Governmental Utility Authority, Utility Revenue Bonds (Lehigh Utility System), 5.125% due 10/01/2033 (b) 1,033 4,500 Halifax Hospital Medical Center, Florida, Hospital Revenue Refunding and Improvement Bonds, Series A, 5.25% due 6/01/2026 4,579 5,000 Hernando County, Florida, School Board, COP, 5% due 7/01/2035 (m) 5,133 1,500 Highlands County, Florida, Health Facilities Authority, Hospital Revenue Bonds (Adventist Health System), Series C, 5.25% due 11/15/2036 1,516 1,055 Hillsborough County, Florida, Court Facilities Revenue Bonds, 5.40% due 11/01/2012 (b)(n) 1,133 2,500 Hillsborough County, Florida, IDA, Exempt Facilities Revenue Bonds (National Gypsum Company), AMT, Series A, 7.125% due 4/01/2030 2,662 3,750 Hillsborough County, Florida, IDA, Exempt Facilities Revenue Bonds (National Gypsum Company), AMT, Series B, 7.125% due 4/01/2030 3,994 1,000 Hillsborough County, Florida, IDA, Hospital Revenue Bonds (H. Lee Moffitt Cancer Center Project), Series C, 5.50% due 7/01/2032 1,026 1,500 Hillsborough County, Florida, School Board, COP, 5% due 7/01/2029 (m) 1,532 1,000 Jacksonville, Florida, Economic Development Commission, Health Care Facilities Revenue Bonds (Mayo Clinic-Jacksonville), Series A, 5.50% due 11/15/2036 (m) 1,059 1,140 Jacksonville, Florida, Economic Development Commission, IDR (Metropolitan Parking Solutions Project), AMT, 5.50% due 10/01/2030 (a) 1,187 2,800 Jacksonville, Florida, Economic Development Commission, IDR (Metropolitan Parking Solutions Project), AMT, 5.875% due 6/01/2031 (a) 3,008 1,500 Jacksonville, Florida, Economic Development Commission, Revenue Refunding Bonds (Anheuser Busch Company Project), AMT, Series B, 4.75% due 3/01/2047 1,394 1,500 Jacksonville, Florida, Excise Taxes Revenue Bonds, Series B, 5.125% due 10/01/2032 (f) 1,554 2,315 Jacksonville, Florida, Guaranteed Entitlement Revenue Refunding and Improvement Bonds, 5.25% due 10/01/2032 (f) 2,417 3,145 Jacksonville, Florida, Health Facilities Authority, Hospital Revenue Bonds (Baptist Medical Center Project), 5% due 8/15/2037 (j) 3,235 3,800 Jacksonville, Florida, Sales Tax Revenue Bonds, 5% due 10/01/2027 (m) 3,912 3,500 Lakeland, Florida, Hospital System Revenue Bonds (Lakeland Regional Health System), Series A, 5.50% due 11/15/2009 (m)(n) 3,661 3,375 Lee County, Florida, Capital Revenue Bonds, 5.25% due 10/01/2023 (b) 3,580 35 Lee County, Florida, HFA, S/F Mortgage Revenue Bonds (Multi-County Program), AMT, Series A-1, 7.125% due 3/01/2028 (h) 35 1,380 Lee County, Florida, IDA, Health Care Facilities, Revenue Refunding Bonds (Shell Point/Alliance Obligor Group), 5% due 11/15/2032 1,317 1,610 Lee County, Florida, IDA, Health Care Facilities, Revenue Refunding Bonds (Shell Point/Alliance Obligor Group), 5.125% due 11/15/2036 1,550 3,000 Lee Memorial Health System, Florida, Hospital Revenue Bonds, Series A, 5% due 4/01/2032 (b) 3,099 105 Leon County, Florida, HFA, S/F Mortgage Revenue Bonds (Multi-County Program), AMT, Series B, 7.30% due 1/01/2028 (g)(k) 108 115 Manatee County, Florida, HFA, S/F Mortgage Revenue Refunding Bonds, AMT, Sub-Series 1, 6.25% due 11/01/2028 (k) 116 1,000 Marco Island, Florida, Utility System Revenue Bonds, 5% due 10/01/2033 (m) 1,028 2,200 Marion County, Florida, Hospital District, Revenue Refunding Bonds (Monroe Regional Medical Center), 5% due 10/01/2029 2,197 1,350 Martin County, Florida, Health Facilities Authority, Hospital Revenue Bonds (Martin Memorial Medical Center), Series A, 5.75% due 11/15/2012 (n) 1,472 3,535 Martin County, Florida, Health Facilities Authority, Hospital Revenue Bonds (Martin Memorial Medical Center), Series A, 5.875% due 11/15/2012 (n) 3,877 3,000 Miami Beach, Florida, Water and Sewer Revenue Bonds, 5.75% due 9/01/2025 (b) 3,175 2,435 Miami-Dade County, Florida, Aviation Revenue Bonds, AMT, Series A, 5% due 10/01/2033 (j) 2,461 4,300 Miami-Dade County, Florida, Aviation Revenue Bonds (Miami International Airport), AMT, Series A, 6% due 10/01/2029 (f) 4,554 9,060 Miami-Dade County, Florida, Aviation Revenue Bonds (Miami International Airport), AMT, Series A, 5% due 10/01/2033 (f) 9,174 1,750 Miami-Dade County, Florida, Educational Facilities Authority Revenue Bonds (University of Miami), Series A, 5.75% due 4/01/2010 (b)(n) 1,852 4,750 Miami-Dade County, Florida, Expressway Authority, Toll System Revenue Bonds, Series B, 5% due 7/01/2033 (f) 4,884 1,800 Miami-Dade County, Florida, HFA, Home Ownership Mortgage Revenue Bonds, AMT, Series A, 5.55% due 10/01/2049 (g)(h) 1,882 445 Miami-Dade County, Florida, HFA, Home Ownership Mortgage Revenue Refunding Bonds, AMT, Series A-1, 6.30% due 10/01/2020 (h) 451 2 Miami-Dade County, Florida, Health Facilities Authority, Hospital Revenue Refunding Bonds, DRIVERS, Series 208, 7.285% due 8/15/2017 (b)(q) 3 3,200 Miami-Dade County, Florida, School Board, COP, Series A, 5.50% due 10/01/2009 (j)(n) 3,315 2,500 Miami-Dade County, Florida, School Board, COP, Series B, 5% due 11/01/2031 (b) 2,576 2,800 Miami-Dade County, Florida, Solid Waste System Revenue Bonds, 5.25% due 10/01/2030 (m) 2,964 5,140 Orange County, Florida, Health Facilities Authority, Hospital Revenue Bonds (Orlando Regional Healthcare), 6% due 12/01/2012 (n) 5,647 10,500 Orange County, Florida, School Board, COP, Series A, 5.25% due 8/01/2009 (m)(n) 10,898 1,600 Orange County, Florida, School Board, COP, Series A, 5% due 8/01/2032 (f) 1,651 3,000 Orlando and Orange County, Florida, Expressway Authority Revenue Bonds, Series B, 5% due 7/01/2030 (b) 3,087 10,185 Orlando and Orange County, Florida, Expressway Authority Revenue Bonds, Series B, 5% due 7/01/2035 (b) 10,452 860 Orlando, Florida, Utilities Commission, Water and Electric Revenue Refunding Bonds, Series C, 5.25% due 10/01/2012 (n) 916 140 Orlando, Florida, Utilities Commission, Water and Electric Revenue Refunding Bonds, Series C, 5.25% due 10/01/2023 147 1,760 Osceola County, Florida, Tourist Development Tax Revenue Bonds, Series A, 5.50% due 10/01/2027 (f) 1,862 5,000 Palm Beach County, Florida, Airport System Revenue Bonds, AMT, Series A, 5% due 10/01/2034 (m) 5,085 3,390 Palm Beach County, Florida, Criminal Justice Facilities Revenue Bonds, 7.20% due 6/01/2015 (f) 4,101 6,000 Palm Beach County, Florida, School Board, COP, Series A, 6.25% due 8/01/2010 (f)(n) 6,466 1,000 Palm Beach County, Florida, School Board, COP, Series A, 5% due 8/01/2029 (f) 1,025 2,200 Palm Beach County, Florida, School Board, COP, Series A, 5% due 8/01/2031 (j) 2,266 1,435 Palm Coast, Florida, Utility System Revenue Bonds, 5% due 10/01/2027 (m) 1,475 380 Pinellas County, Florida, HFA, S/F Housing Revenue Refunding Bonds (Multi-County Program), AMT, Series A-1, 6.30% due 9/01/2020 (h) 383 570 Pinellas County, Florida, HFA, S/F Housing Revenue Refunding Bonds (Multi-County Program), AMT, Series A-1, 6.35% due 9/01/2025 (h) 575 3,000 Pinellas County, Florida, Health Facilities Authority Revenue Bonds (BayCare Health System Inc.), 5.75% due 5/15/2013 (n) 3,279 1,480 Polk County, Florida, Public Facilities Revenue Bonds, 5% due 12/01/2033 (m) 1,526 4,385 Polk County, Florida, School Board COP, Master Lease, Series A, 5.50% due 1/01/2025 (j) 4,609 1,200 Port Everglades Authority, Florida, Port Revenue Bonds, 7.125% due 11/01/2016 (e) 1,370 1,215 Port St. Lucie, Florida, Utility Revenue Bonds, 5.25% due 9/01/2025 (m) 1,292 3,500 Port St. Lucie, Florida, Utility System Revenue Refunding Bonds, Series A, 5% due 9/01/2029 (m) 3,629 2,045 Reedy Creek, Florida, Improvement District, Utilities Revenue Bonds, Series 1, 5% due 10/01/2025 (b) 2,127 900 Saint Johns County, Florida, Ponte Vedra Utility System Revenue Bonds, 5% due 10/01/2030 (j) 930 1,000 Saint Johns County, Florida, Ponte Vedra Utility System Revenue Bonds, 5% due 10/01/2035 (j) 1,032 2,400 Saint Johns County, Florida, Sales Tax Revenue Bonds, Series A, 5.25% due 10/01/2032 (b) 2,520 1,200 Saint Johns County, Florida, Sales Tax Revenue Bonds, Series A, 5.25% due 10/01/2034 (b) 1,259 1,015 Saint Johns County, Florida, Sales Tax Revenue Bonds, Series B, 5.25% due 10/01/2032 (b) 1,066 2,275 South Florida Water Management District, COP, 5% due 10/01/2036 (b) 2,337 1,000 South Lake County, Florida, Hospital District Revenue Bonds (South Lake Hospital Inc.), 5.80% due 10/01/2034 1,028 1,150 South Lake County, Florida, Hospital District Revenue Bonds (South Lake Hospital Inc.), 6.375% due 10/01/2034 1,235 2,190 Sumter County, Florida, Capital Improvement Revenue Bonds, 5% due 6/01/2026 (b) 2,275 3,500 Sumter County, Florida, Capital Improvement Revenue Bonds, 5% due 6/01/2030 (b) 3,618 5,000 Tampa Bay, Florida, Water Utility System Revenue Bonds, 5.75% due 10/01/2011 (f)(n) 5,368 3,235 University of Central Florida (UCF) Athletics Association Inc., COP, Series A, 5.25% due 10/01/2034 (f) 3,382 2,400 University of North Florida, Capital Improvement Revenue Bonds (Housing Project), 5% due 11/01/2032 (f) 2,488 1,995 Village Center Community Development District, Florida, Recreational Revenue Bonds, Series A, 5.375% due 11/01/2034 (m) 2,127 1,000 Village Center Community Development District, Florida, Recreational Revenue Bonds, Series A, 5.125% due 11/01/2036 (m) 1,039 5,040 Village Center Community Development District, Florida, Utility Revenue Bonds, 5.125% due 10/01/2028 (m) 5,225 1,000 Volusia County, Florida, IDA, Student Housing Revenue Bonds (Stetson University Project), Series A, 5% due 6/01/2035 (d) 1,032 5,000 Volusia County, Florida, School Board, COP (Master Lease Program), 5.50% due 8/01/2024 (j) 5,201 Georgia - 1.7% 3,270 Atlanta, Georgia, Airport Passenger Facility Charge and Subordinate Lien General Revenue Refunding Bonds, Series C, 5% due 1/01/2033 (j) 3,358 New Jersey - 3.6% 3,500 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.50% due 6/15/2024 3,634 1,735 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.75% due 6/15/2029 1,847 505 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.50% due 6/15/2031 528 1,000 Tobacco Settlement Financing Corporation of New Jersey, Asset-Backed Revenue Bonds, 7% due 6/01/2013 (n) 1,158 Puerto Rico - 5.6% 1,000 Puerto Rico Commonwealth, Public Improvement, GO, Series A, 5.25% due 7/01/2026 1,052 1,800 Puerto Rico Electric Power Authority, Power Revenue Bonds, Series TT, 5% due 7/01/2037 1,847 2,000 Puerto Rico Public Buildings Authority, Government Facilities Revenue Refunding Bonds, Series I, 5% due 7/01/2036 2,035 1,715 Puerto Rico Public Finance Corporation, Commonwealth Appropriation Revenue Bonds, Series E, 5.70% due 2/01/2010 (n) 1,792 4,025 Puerto Rico Public Finance Corporation, Commonwealth Appropriation Revenue Bonds, Series E, 5.50% due 2/01/2012 (n) 4,299 Total Municipal Bonds (Cost - $274,240) - 143.4% 283,742 Municipal Bonds Held in Trust (r) Florida - 21.1% 5,000 Miami-Dade County, Florida, Aviation Revenue Refunding Bonds (Miami International Airport), AMT, Series A, 5% due 10/01/2040 (i) 5,070 16,000 Miami-Dade County, Florida, Expressway Authority, Toll System Revenue Bonds, 6.375% due 7/01/2010 (f)(n) 17,238 6,595 Miami-Dade County, Florida, Health Facilities Authority, Hospital Revenue Refunding Bonds (Miami Children's Hospital), Series A, 5.625% due 8/15/2017 (b) 7,084 1,180 Santa Rosa County, Florida, School Board, COP, Revenue Refunding Bonds, Series 2, 5.25% due 2/01/2026 (f) 1,246 1,820 Santa Rosa County, Florida, School Board, COP, Revenue Refunding Bonds, Series 2, 5.25% due 2/01/2031 (f) 1,923 8,500 South Broward, Florida, Hospital District, Hospital Revenue Bonds, 5.625% due 5/01/2032 (m) 9,208 Total Municipal Bonds Held in Trust (Cost - $40,415) - 21.1% 41,769 Shares Held Short-Term Securities 1,426 CMA Florida Municipal Money Fund, 3.03% (l)(p) 1,426 Total Short-Term Securities (Cost - $1,426) - 0.7% 1,426 Total Investments (Cost - $316,081*) - 165.2% 326,937 Other Assets Less Liabilities - 0.4% 753 Liability for Trust Certificates, Including Interest Expense Payable - (10.0%) (19,714) Preferred Shares, at Redemption Value - (55.6%) (110,062) ----------- Net Assets Applicable to Common Shares - 100.0% $ 197,914 =========== * The cost and unrealized appreciation (depreciation) of investments as of July 31, 2007, as computed for federal income tax purposes, were as follows: Aggregate cost $ 298,400 =============== Gross unrealized appreciation $ 10,364 Gross unrealized depreciation (1,375) --------------- Net unrealized appreciation $ 8,989 =============== (a) ACA Insured. (b) AMBAC Insured. (c) Assured Guaranty Insured. (d) CIFG Insured. (e) Escrowed to maturity. (f) FGIC Insured. (g) FHLMC Collateralized. (h) FNMA/GNMA Collateralized. (i) XL Capital Insured. (j) FSA Insured. (k) GNMA Collateralized. (l) Investments in companies considered to be an affiliate of the Fund, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: Net Dividend Affiliate Activity Income CMA Florida Municipal Money Fund (6,033) $ 84 (m) MBIA Insured. (n) Prerefunded. (o) Radian Insured. (p) Represents the current yield as of July 31, 2007. (q) The rate disclosed is that currently in effect. This rate changes periodically and inversely based upon prevailing market rates. (r) Securities represent underlying bonds transferred to a separate securitization trust established in a tender option bond transaction in which the Fund may have acquired the residual interest certificates. These securities serve as collateral in a financing transaction. o Forward interest rate swaps outstanding as of July 31, 2007 were as follows: Notional Unrealized Amount Appreciation Pay a fixed rate of 3.834% and receive a floating rate based on 1-Week Bond Market Association Rate Broker, JPMorgan Chase Expires August 2017 $ 12,500 $ 65 Item 2 - Controls and Procedures 2(a) - The registrant's principal executive and principal financial officers or persons performing similar functions have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act")) are effective as of a date within 90 days of the filing of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 13a-15(b) under the Securities and Exchange Act of 1934, as amended. 2(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 3 - Exhibits Certifications - Attached hereto 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. BlackRock MuniYield Florida Fund By: /s/ Robert C. Doll, Jr. ----------------------- Robert C. Doll, Jr., Chief Executive Officer (principal executive officer) of BlackRock MuniYield Florida Fund Date: September 20, 2007 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 C. Doll, Jr. ----------------------- Robert C. Doll, Jr., Chief Executive Officer (principal executive officer) of BlackRock MuniYield Florida Fund Date: September 20, 2007 By: /s/ Donald C. Burke -------------------- Donald C. Burke, Chief Financial Officer (principal financial officer) of BlackRock MuniYield Florida Fund Date: September 20, 2007