Great Boulder Resources (ASX:GBR) said reverse circulation drilling at the Eaglehawk deposit defined additional high-grade gold in the lead-up to a maiden mineral resource estimate for the deposit, part of the Side Well gold project in Western Australia, according to a Tuesday Australian bourse filing.

It encountered intercepts of 28 meters at 3.8 grams per tonne grade of gold from 176 meters, as well as nine meters at 5.94g/t grade of gold from 70 meters.

The results reinforce the view that Eaglehawk has the same style and tenor of gold grades as the firm's high-grade Mulga Bill deposit, its Managing Director, Andrew Paterson, said.

The firm also said it obtained up to AU$180,000 in Western Australia government exploration incentive scheme funding for a program of deep diamond holes at Mulga Bill and Eaglehawk.