** Shares of Dateline Resources DTR.AX rise as much as
40.6% to A$0.045, their highest since Dec. 12
** Gold miner says initial assay results include gold
intersection at its Colosseum mine in California, U.S.
** Co says, the current drilling program is designed to
increase the overall gold resource size, both in terms of
tonnage and grade
** DTR stock set for best day since Feb. 2
** Stock down 13.5% YTD, as of last close
(Reporting by Ayushman Ojha in Bengaluru)
((Ayushman.ojha@thomsonreuters.com;))