** Shares of Great Boulder Resources GBR.AX rise 3.9% to A$0.08
** Stock hits their highest level since July 25, 2023
** The mineral explorer signs a memorandum of understanding with Monument Mining MMY.V for collaboration to potentially process ore from co's Side Well Gold Project through MMY's Burnakura Mill
** About 5.3 million shares change hands, 2.4 times the 30-day average volume of shares
** Stock up 79.1% this year, as of last close
(Reporting by Sherin Sunny in Bengaluru)
((Sherin.Sunny@thomsonreuters.com;))