Among the highlights, Corvus hit 18.3m at 4.02g/t gold from 298.7m, saying the drill hole intersected the Main Zone in the western-most hole reported to date.
The company said the above hole together with another 70m northeast showed increasing grade as Corvus drilled to the west and outlined a new high-grade centre to the deposit.
"This expanding high-grade centre appears to [be] the primary feeder structure for the Mother Lode deposit and has potential at depth to transition into a larger deposit," president and CEO Jeff Pontius said.
Phase two drilling will continue until August and the company is planning a new, 30,000m phase three programme to start in September, funded thanks to a C$4.5 million (US$3.47 million) placement with "a strategic investor" that closed earlier this month.
The company had reported working capital of about C$4.6 million (US$3.54 million) at the end of February.
Corvus intends to release a maiden resource for Mother Lode in the third quarter and a combined North Bullfrog/Mother Lode preliminary economic assessment before the end of the year.
Its shares, which were trading at C82c a year ago, rose about 3% yesterday to close at $2.60.