MEMORANDUM

Plaintiff-Appellant William Graven appeals from the district court’s judgment dismissing this case. Because the parties are familiar with the facts and procedural history, we repeat only those facts necessary to resolve the issues raised on appeal. We affirm.

Graven’s application for a writ of mandamus is without merit for at least two independent reasons. First, the duty that Graven seeks to enforce is not “ministerial and so plainly prescribed as to be free from doubt.” R. T. Vanderbilt Co. v. Babbitt, 113 F.3d 1061 , 1065 n. 5 (9th Cir. 1997). In his complaint, Graven makes clear that he seeks relief under the discretionary portion of 25 U.S.C. § 229 . Indeed, the complaint expressly provides that the “Purpose of this Action” is to compel Defendants “to take the further steps as shall be proper in the opinion of the President to obtain satisfaction for the injury.” Graven thus attempts to compel action that is purely discretionary.

Second, Graven does not demonstrate that “no other adequate remedy is available.” R.T. Vanderbilt Co., 113 F.3d at 1065 n. 5. To the contrary, Graven was in the midst of pursuing alternative remedies when he filed this lawsuit. Graven admits in his complaint that, when he filed suit, a related matter was pending before the Interior Board of Indian Appeals. More over, Graven failed to fully avail himself of tribal court remedies.

For these reasons, Graven’s application for a writ of mandamus is without merit. While the district court incorrectly dismissed this case under Federal Rule of Civil Procedure 12(b)(1), rather than under Rule 12(b)(6), we may affirm on any basis supported by the record. Tritz v. U.S. Postal Serv., 721 F.3d 1183, 1136 (9th Cir. 2013). Under the circumstances here, “a remand would only require a new Rule 12(b)(6) label for the same Rule 12(b)(1) conclusion.” Morrison Nat’l Austl. Bank Ltd., 561 U.S. 247 , 130 S.Ct. 2869, 2877 , 177 L.Ed.2d 535 (2010). We therefore affirm the judgment of the district court.

AFFIRMED.

This disposition is not appropriate for publication and is not precedent except as provided by 9th Cir. R. 36-3. . Defendants-Appellees’ Motion to Take Judicial Notice, filed November 15, 2013, is GRANTED. The Motion to Withdraw as Pro Bono Counsel, filed April 9, 2014, is GRANTED.