MODIFICATION OF MINING LEASE AND OPTION TO PURCHASE This Modification of Mining Lease and Option to Purchase (this "Agreement") is executed as of the 31st day of May, 2004, by and between Crown Mines, L.L.C., as lessor ("Lessor"), and Unico,...Modification of Mining Lease and Option to Purchase • July 22nd, 2004 • Unico Inc /Az/ • Metal mining
