exhibit 10. 18 ( the undersigned certifies that this document does not include any social security numbers. ) apn ( s ) : 06 - 111 - 08 recording requested by and when recorded mail to : fennemore craig, p. c. 3003 n. central avenue, suite 2600 phoenix, arizona 85012 - 2913 attention : sarah strunk, esq. fennemore craig, p. c. 3003 n. central avenue, suite 2600 phoenix, arizona 85012 - 2913 attention : sarah strunk, esq. assignment of leases and rents this assignment of leases and rents ( this “ assignment ” ) dated and made effective august 21st, 2009, by shea mining & milling, llc, a nevada limited liability company ( “ borrower ” ), having its principal place of business at 192 sandy bunker lane, las vegas nv 89148, for the benefit njb mining, inc., an arizona corporation, its successors and assigns ( “ lender ” ), having an address at 10751 n. frank lloyd wright blvd., suite 101, scottsdale, arizona 85259. recitals : a. lender agreed to make and borrower agreed to accept a loan ( the “ loan ” ) in the amount of $ 2, 500, 000. 00. b. to evidence the loan, borrower executed and delivered to lender a secured promissory note ( the “ note ” ), dated the date of this assignment, in the principal amount of two million five hundred thousand dollars ( $ 2, 500, 000 ), with interest from the date thereof at the rates set forth in the note, and with principal and interest to be payable in accordance with the terms and conditions provided in the note. c. borrower ’ s obligations under the note are secured among other things by a deed of trust, assignment of rents, security agreement and fixture filing ( the “ deed of trust ” ), dated the date of this assignment, that encumbers borrower ’ s fee interest in the land ( the “ land ” ) described in exhibit a, the improvements located on the land and certain other property, rights and interests of borrower, all as more particularly described in the deed of trust ( collectively, the “ property ” ). d. borrower desires to secure the payment and performance of all of its obligations under the note and the obligations secured by the deed of trust (