The drill programme consists of two holes that will test two “highly conductive targets” which were identified by downhole electromagnetic (EM) surveys back in November.
The key objective of the drilling – which Greatland received approval for at the start of the month – is to determine the nature of these two “high priority” targets.
“We are very pleased to commence drilling at Bromus and follow up on the work done last year that identified two highly conductive targets,” said chief executive Gervaise Heddle.
“In our opinion, both of these high priority targets are prospective for nickel sulphide mineralisation.”
Drilling is expected to be completed within the next two weeks, while assays should be available by the end of April, Greatland said.
Shares closed higher at 0.29p on Friday.