BlackRock Advisors, LLC today announced the redemption details for certain series of auction rate preferred shares ("ARPS") issued by seven BlackRock tax-exempt closed-end funds (the "Funds"). These redemptions, which are being made at the liquidation preference of $25,000 per share, together with accrued and unpaid dividends to the redemption date, if any, are being announced in connection with the issuance of Variable Rate Demand Preferred Shares ("VRDP") by the Funds, as announced on May 17, 2011.

Details for subsequent redemptions for certain series of ARPS in connection with the issuance of VRDP by the Funds are expected to be announced on May 24, 2011 and May 31, 2011 as required under the governing documents of the ARPS for certain of the Funds.

Please see redemption details below.

BlackRock MuniEnhanced Fund, Inc. (NYSE:MEN)

Series   CUSIP   Redemption Date   Total Shares to be Redeemed   Amount to be Redeemed
A28   09253Y209   June 14, 2011   1,525   $38,125,000
C7   09253Y407   May 31, 2011   1,525   $38,125,000
D7   09253Y506   June 10, 2011   1,128   $28,200,000
 

BlackRock MuniYield Pennsylvania Quality Fund (NYSE:MPA)

Series   CUSIP   Redemption Date   Total Shares to be Redeemed   Amount to be Redeemed
A7   09255G206   June 14, 2011   1,041   $26,025,000
B7   09255G305   June 8, 2011   1,249   $31,225,000
C7   09255G404   June 10, 2011   364   $9,100,000
 

BlackRock MuniYield California Fund, Inc. (NYSE:MYC)

Series   CUSIP   Redemption Date   Total Shares to be Redeemed   Amount to be Redeemed
A28   09254M204   June 9, 2011   1,453   $36,325,000
B7   09254M303   June 2, 2011   1,453   $36,325,000
D7   09254M501   June 7, 2011   848   $21,200,000
 

BlackRock MuniYield Investment Fund (NYSE:MYF)

Series   CUSIP   Redemption Date   Total Shares to be Redeemed   Amount to be Redeemed
A7   09254R203   June 2, 2011   1,189   $29,725,000
B7   09254R302   June 10, 2011   865   $21,625,000
C7   09254R401   June 8, 2011   325   $8,125,000
 

BlackRock MuniYield Quality Fund III, Inc. (NYSE:MYI)

Series   CUSIP   Redemption Date   Total Shares to be Redeemed   Amount to be Redeemed
C28   09254E400   June 9, 2011   1,376   $34,400,000
D28   09254E509   June 16, 2011   1,376   $34,400,000
E7   09254E608   June 9, 2011   2,502   $62,550,000
G7   09254E806   June 14, 2011   1,501   $37,525,000
H7   09254E889   June 10, 2011   1,625   $40,625,000
I7   09254E871   June 6, 2011   1,625   $40,625,000
 

BlackRock MuniYield Michigan Quality Fund II, Inc. (NYSE:MYM)

Series   CUSIP   Redemption Date   Total Shares to be Redeemed   Amount to be Redeemed
A7   09254W202   May 31, 2011   1,941   $48,525,000
B7   09254W301   June 8, 2011   1,200   $30,000,000
C7   09254W400   June 9, 2011   353   $8,825,000
 

BlackRock MuniYield Arizona Fund, Inc. (NYSE Amex:MZA)

Series   CUSIP   Redemption Date   Total Shares to be Redeemed   Amount to be Redeemed
A7   09254K208   June 9, 2011   499   $12,475,000
B7   09254K307   June 14, 2011   668   $16,700,000
C7   09254K406   June 6, 2011   385   $9,625,000
 

BlackRock will continue to keep market participants and shareholders informed of its closed-end funds' progress to redeem ARPS via press releases and on BlackRock's website at www.blackrock.com.

About BlackRock

BlackRock is a leader in investment management, risk management and advisory services for institutional and retail clients worldwide. At March 31, 2011, BlackRock's assets under management were $3.648 trillion. BlackRock offers products that span the risk spectrum to meet clients' needs, including active, enhanced and index strategies across markets and asset classes. Products are offered in a variety of structures including separate accounts, mutual funds, iShares® (exchange-traded funds), and other pooled investment vehicles. BlackRock also offers risk management, advisory and enterprise investment system services to a broad base of institutional investors through BlackRock Solutions®. Headquartered in New York City, as of March 31, 2011, the firm has approximately 9,300 employees in 26 countries and a major presence in key global markets, including North and South America, Europe, Asia, Australia and the Middle East and Africa. For additional information, please visit the firm's website at www.blackrock.com.

Forward-Looking Statements

This press release, and other statements that BlackRock may make, may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act, with respect to BlackRock's future financial or business performance, strategies or expectations. Forward-looking statements are typically identified by words or phrases such as "trend," "potential," "opportunity," "pipeline," "believe," "comfortable," "expect," "anticipate," "current," "intention," "estimate," "position," "assume," "outlook," "continue," "remain," "maintain," "sustain," "seek," "achieve," and similar expressions, or future or conditional verbs such as "will," "would," "should," "could," "may" or similar expressions.

BlackRock cautions that forward-looking statements are subject to numerous assumptions, risks and uncertainties, which change over time. Forward-looking statements speak only as of the date they are made, and BlackRock assumes no duty to and does not undertake to update forward-looking statements. Actual results could differ materially from those anticipated in forward-looking statements and future results could differ materially from historical performance.

With respect to the Funds, the following factors, among others, could cause actual events to differ materially from forward-looking statements or historical performance: (1) changes and volatility in political, economic or industry conditions, the interest rate environment, foreign exchange rates or financial and capital markets, which could result in changes in demand for the Funds or in the Funds' net asset value; (2) the relative and absolute investment performance of the Funds and their investments; (3) the impact of increased competition; (4) the unfavorable resolution of any legal proceedings; (5) the extent and timing of any distributions or share repurchases; (6) the impact, extent and timing of technological changes; (7) the impact of legislative and regulatory actions and reforms, including the recently approved Dodd-Frank Wall Street Reform and Consumer Protection Act, and regulatory, supervisory or enforcement actions of government agencies relating to the Funds or BlackRock, as applicable; (8) terrorist activities, international hostilities and natural disasters, which may adversely affect the general economy, domestic and local financial and capital markets, specific industries or BlackRock; (9) BlackRock's ability to attract and retain highly talented professionals; (10) BlackRock's success in maintaining secondary market support for the Funds; (11) the impact of BlackRock electing to provide support to its products from time to time; (12) the impact of problems at other financial institutions or the failure or negative performance of products at other financial institutions; and (13) the ability of BlackRock to integrate the operations of Barclays Global Investors.

The Annual and Semi-Annual Reports and other regulatory filings of the Funds with the Securities and Exchange Commission ("SEC") are accessible on the SEC's website at www.sec.gov and on BlackRock's website at www.blackrock.com, and may discuss these or other factors that affect the Funds. The information contained on BlackRock's website is not a part of this press release.

BlackRock Closed-End Funds
1-800-882-0052