CONSENT OF INDEPENDENT ACCOUNTANTS
We hereby consent to 1) the incorporation by reference in T. Rowe Price U. S.
Bond Index Fund, Inc.'s Registration Statement on Form N-1A (the "Registration
Statement") of our reports dated November 17, 1999, relating to the financial
statements and financial highlights which appear in the October 31, 1999 Annual
Reports to Shareholders of T. Rowe Price Summit Cash Reserves Fund and T. Rowe
Price Summit GNMA Fund (two of the funds comprising T. Rowe Price Summit Funds,
Inc.) and T. Rowe Price Summit Municipal Money Market Fund, T. Rowe Price Summit
Municipal Intermediate-Term Fund, and T. Rowe Price Summit Municipal Income Fund
(comprising T. Rowe Price Summit Municipal Funds, Inc.), which are incorporated
by reference into the Registration Statement; 2) the inclusion in the
Registration Statement of our report dated October 25, 2000, relating to the
financial statement of T. Rowe Price U.S. Bond Index Fund, Inc.; and 3) the
reference to us under the heading "Independent Accountants" in such Registration
Statement.
/s/PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP
Baltimore, Maryland
October 25, 2000
