EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

TO THE SHAREHOLDERS AND BOARD OF TRUSTEES OF BLACKROCK MUNIYIELD INVESTMENT
FUND AND TO THE SHAREHOLDERS AND BOARDS OF DIRECTORS OF BLACKROCK MUNI NEW YORK
INTERMEDIATE DURATION FUND, INC., BLACKROCK MUNIYIELD ARIZONA FUND, INC.,
BLACKROCK MUNIYIELD CALIFORNIA FUND, INC., AND BLACKROCK MUNIYIELD NEW JERSEY
FUND, INC.:

In planning and performing our audits of the financial statements of BlackRock
Muni New York Intermediate Duration Fund, Inc., BlackRock MuniYield Arizona
Fund, Inc., BlackRock MuniYield California Fund, Inc., BlackRock MuniYield
Investment Fund and BlackRock MuniYield New Jersey Fund, Inc. (individually a
"Fund" and collectively, the "Funds"), as of and for the year ended July 31,
2016, in accordance with the standards of the Public Company Accounting
Oversight Board (United States), we considered the Funds' internal control over
financial reporting, including controls 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 Funds' internal control over financial reporting.
Accordingly, we express no such opinion.

The management of the Funds 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 fund'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 fund'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 fund; (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 fund
are being made only in accordance with authorizations of management and
trustees/directors of the funds; and (3) provide reasonable assurance regarding
prevention or timely detection of unauthorized acquisition, use, or disposition
of a fund'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
Funds' annual or interim financial statements will not be prevented or detected
on a timely basis.

Our consideration of the Funds' 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 Funds' internal control over financial reporting and its operation,
including controls for safeguarding securities, that we consider to be a
material weakness, as defined above, as of July 31, 2016.

This report is intended solely for the information and use of management and
the Board of Trustees of BlackRock MuniYield Investment Fund and the Boards of
Directors of BlackRock Muni New York Intermediate Duration Fund, Inc.,
BlackRock MuniYield Arizona Fund, Inc., BlackRock MuniYield California Fund,
Inc., and BlackRock MuniYield New Jersey Fund, Inc., 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
September 26, 2016

EX-99.77I NEW SECUR

            BlackRock MuniYield California Fund, Inc. (the "Fund")
                              File No. 811-06499
        Item No. 77I (Terms of New or Amended Securities) -- Attachment

A copy of the Amendment to the Notice of Special Rate Period of the Fund's
Variable Rate Demand Preferred Shares is attached under Sub-Item 77Q1(a).

EX-99.77Q1 OTHR EXHB

            BlackRock MuniYield California Fund, Inc. (the "Fund")
                              File No. 811-06499
  Item No. 77Q1(a) (Copies of Material Amendments to Registrant's Charter or
                            By-laws) -- Attachment

Attached please find as an exhibit under Sub-Item 77Q1(a) of Form N-SAR, a copy
of the Fund's Amendment to the Notice of Special Rate Period of the Fund's
Variable Rate Demand Preferred Shares filed with the books and records of the
Fund on June 7, 2016.



                                                                Exhibit 77Q1(a)

                   BLACKROCK MUNIYIELD CALIFORNIA FUND, INC.
                                 (THE "FUND")
                                  SERIES W-7
             VARIABLE RATE DEMAND PREFERRED SHARES ("VRDP SHARES")

                             CUSIP NO. 09254M600*

                  AMENDMENT TO NOTICE OF SPECIAL RATE PERIOD

                                          June 7, 2016

                                          BlackRock MuniYield California
                                          Fund,Inc.
                                          100 Bellevue Parkway
                                          Wilmington, Delaware 19809

TO: Addressees listed on Schedule 1 hereto

   In accordance with the Fund's Articles Supplementary Establishing and Fixing
the Rights and Preferences of Variable Rate Demand Preferred Shares, dated
May 17, 2011 (the "ARTICLES SUPPLEMENTARY"), the Fund hereby notifies the
Liquidity Provider, the Remarketing Agent and the Holders of the VRDP Shares
that the last day of the Special Rate Period has been extended from June 22,
2016 to June 21, 2017 in accordance with the terms of the Notice of Special
Rate Period, dated June 20, 2012 (the "NOTICE OF SPECIAL RATE PERIOD").

   The last day of the Special Rate Period shall be June 21, 2017, or such
later date as the Special Rate Period may be extended pursuant to the terms of
the Notice of Special Rate Period.

   Capitalized terms used but not defined in this Amendment to Notice of
Special Rate Period shall have the meanings given to such terms in the Articles
Supplementary and the Notice of Special Rate Period.

                           [Signature Page Follows]

--------
* NOTE: Neither the Fund nor the Tender and Paying Agent shall be responsible
  for the selection or use of the CUSIP Numbers selected, nor is any
  representation made as to its correctness indicated in any notice or as
  printed on any VRDP Share certificate. It is included solely as a convenience
  to Holders of VRDP Shares.


                                      2



IN WITNESS WHEREOF, I have signed this Amendment to the Notice of Special Rate
Period as of the date first written above.

                                     BLACKROCK MUNIYIELD CALIFORNIA FUND, INC.

                                     By:  /s/ Jonathan Diorio
                                          --------------------------------------
                                          Name:   Jonathan Diorio
                                          Title:  Vice President

                                      3



                                                                     SCHEDULE 1

               RECIPIENTS OF THIS NOTICE OF SPECIAL RATE PERIOD

Citibank, N.A.
390 Greenwich Street, 2nd Floor
New York, New York 10013
Attention: MSD Middle Office Manager
Telephone: (212) 723-6320
Fax: (212) 723-8642
Email: msdcititob@citi.com

Citigroup Global Markets Inc.
390 Greenwich Street
New York, New York 10013
Attention: Middle Office Manager
Telephone: (212) 723-7124
Fax: (212) 723-8642
Email: msdcititob@citi.com

The Depository Trust Company
LensNotice@dtcc.com

EX-99.77Q1 OTHR EXHB

            BlackRock MuniYield California Fund, Inc. (the "Fund")
                              File No. 811-06499
    Item No. 77Q1(d) (Copies of All Constituent Instruments Referred to in
                          Sub-Item 77I) -- Attachment

A copy of the Amendment to the Notice of Special Rate Period of the Fund's
Variable Rate Demand Preferred Shares is attached under Sub-Item 77Q1(a).