** Shares of base metals explorer American West Metals
AW1.AX rise as much as 71% to A$0.265
** Shares on track to post their best day, if gains hold
** Co says assay results from the fourth diamond drill hole
at its West Desert Project in Utah found high-grade zinc and
copper urn:newsml:reuters.com:*:nASX1Ld16c
** Says mineralised intervals include high grades of silver
and indium
** Shares hit their highest since April 22
** About 11.2 mln shares trade hands, 54 times the 30-day
average of 207,273 shares
** As of last close, stock up 24% this year
(Reporting by Himanshi Akhand in Bengaluru)
((Himanshi.Akhand@thomsonreuters.com;))