Columbus Exploration announces that it has amended the option agreement with Santa Fe Gold Corporation under which Santa Fe may earn 100% of Columbus Exploration's interest in the New Mexico Mogollon Project. The Amendment only changes the due dates for Santa Fe's cash payments under the Agreement. Santa Fe must now pay US$50,000 on or before July 31, 2013, US$887,500 on or before December 30, 2013, and three further
[...]