Exhibit 23.1 CONSENT OF INDEPENDENT AUDITOR We consent to the reference to our firm under the caption "Experts" in Amendment No. 1 to the Registration Statement (Form S-3) and related Prospectus of Natural Resource Partners L.P. for the registration of its common units, and debt securities, and debt securities of NRP (Operating) LLC, and to the incorporation by reference therein of our reports with respect to the following financial statements included in Natural Resource Partners L.P.'s Annual Report (Form 10-K) for the year ended December 31, 2002, filed with the Securities and Exchange Commission: Report Date Financial Statements ----------- -------------------- February 11, 2003 Consolidated Financial Statements of Natural Resource Partners L.P. February 7, 2003 Financial Statements of Western Pocahontas Properties Limited Partnership February 7, 2003 Financial Statements of Great Northern Properties Limited Partnership February 7, 2003 Financial Statements of New Gauley Coal Corporation February 11, 2003 Consolidated Balance Sheet of NRP (GP) LP included as Exhibit 99.1 ERNST & YOUNG LLP February 9, 2004 Houston, Texas