This article is 4 years old. Images might not display.
Better results included 8m grading 4.4 grams per tonne from 94m and 10m at 3.6gpt from 156m.
According to De Grey, Crow and the three other main mineralised zones - Aquila, Brolga and Falcon - mean the Hemi system currently extends over 3000m north-south, more than 2000m east-west, and to over 400m depth.
Six rigs are on site.
De Grey is aiming for an initial resource estimate in mid-2021, with a high level of ounces in the "indicated" category being targeted.
Last month De Grey unveiled a A$100 million fund raising that priced new shares at $1.20 each.
Shares in De Grey were down 5% to $1.13 in afternoon trade, capitalising the company at $1.4 billion.