October 23, 2013 DELIVERED VIA EMAIL – wms@aubullion.com Nevada Royalty Corp. 11521 North Warren Street Hayden, Idaho 83835 Attention: William Sheriff Dear Sir: Reference is made to the option agreement among Battle Mountain Gold Inc.,

Exhibit 4.T

October 23, 2013

DELIVERED VIA EMAIL – xxx@xxxxxxxxx.xxx

Nevada Royalty Corp.
00000 Xxxxx Xxxxxx Xxxxxx
Xxxxxx, Xxxxx 00000

Attention: Xxxxxxx Xxxxxxx

Dear Sir:

Reference is made to the option agreement among Battle Mountain Gold Inc.,

Battle Mountain Gold, (USA) Inc. and Nevada Royalty Corp. (formerly Great American Minerals, Inc.) dated March 13, 2013 (the “Option Agreement”). This letter agreement will confirm our agreement to amend Section 3.2(d) of the Option Agreement by deleting “12 months” and replacing it with “18 months”.

Please acknowledge your acceptance and agreement to the above terms and conditions by signing a copy of this letter agreement in the space provided below and returning it to the undersigned. Such signed copy may be delivered by facsimile or any other means of electronic transmission, and each of which so signed will be deemed to be an original and notwithstanding the date of execution will be deemed to bear the date first set out above.

Battle Mountain Gold Inc.	Battle Mountain Gold (USA), Inc.
Signed “Xxxxx Xxxxxxx”	Signed “Xxxxx Xxxxxxx”
Xxxxx Xxxxxxx, Director	Xxxxx Xxxxxxx, Director

Nevada Royalty Corp.

Signed “Xxxxxxx X. Xxxxxxx”
Name: Xxxxxxx X. Xxxxxxx
Title: Chief Financial Officer

E-578