I thought it after reading the grades (From first hand on the...

I thought it after reading the grades (From first hand on the ground experience at one of the two in the late 2000's....) then read it 10 seconds later:

"As explained in previous announcements, the stacking of shallow plunging gold zones is a feature of both the Fosterville mine where the Swan Zone now contains reserves of 1.16 million ounces of gold at a grade of 61.2 g/t Au (refer ASX announcement by Kirkland Lake Gold Limited dated 6 April 2018) and Bendigo, which produced 22 million ounces of gold at a grade of 15g/t Au. "