It seems the following previous announcement understand FR from...

It seems the following previous announcement understand FR from IGO on 22Feb 2018
RBC Capital Markets Presentation
(Please refer to page 27 Why Explore in the Fraser Range)

IMO, there highly likely are some or several mineral deposits (=lenses) in southern Range.
Silver Knight seems sitting on simple end boundary as it is very tiny low grade deposit. If there was no IGO processing plant nearby and bought out by IGO, it wouldn't be developed, imo.
(Silver Knight resource: 4.2 Mt @ 0.8% Ni 0.6% Cu and 0.08% Co; source GAL October 2020 Presentation)

Then, where are other remaining mineral ore lenses?
Personally, Plato(s) is seemingly highly likely or deemed to be)

Another contender could be at near Heart prospect area.
Just I am thinking that it is:
(1) vast areas of geochemical evidence of Ni and Cu.
(2) located in likely highest gravity areas in FR Gravity High Flank as gravity is most influencing force to form Ni-Cu sulphide deposits.
(3) early years dimension stone explorer had encountered mineral sulphides in the area.
(4) according to company announcement there exist subtle 2 conductors along cross faults.
(But I do not 100% trust company announcements as it said until it provides physical evidence)